MC

7f7d_c611

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing 3 nitrogen atoms (guanidinium)'.

arginine Correct glutamine Incorrect serine Incorrect threonine Incorrect tryptophan Incorrect MC

2694_3a56

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

aspartic acid Incorrect glutamine Correct threonine Incorrect tryptophan Incorrect valine Incorrect MC

86f1_b16e

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

arginine Incorrect glutamine Incorrect histidine Incorrect isoleucine Correct valine Incorrect MC

1c3a_34d1

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct cysteine Incorrect isoleucine Incorrect proline Incorrect threonine Incorrect MC

4c41_328c

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

cysteine Incorrect glutamine Incorrect lysine Incorrect serine Incorrect valine Correct MC

9acc_8639

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

arginine Incorrect cysteine Correct glutamine Incorrect glycine Incorrect leucine Incorrect MC

a574_c981

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

leucine Correct lysine Incorrect methionine Incorrect proline Incorrect threonine Incorrect MC

1c3a_c147

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct asparagine Incorrect cysteine Incorrect histidine Incorrect threonine Incorrect MC

7f7d_511d

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing 3 nitrogen atoms (guanidinium)'.

arginine Correct glutamine Incorrect glycine Incorrect serine Incorrect tyrosine Incorrect MC

83db_a4c2

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

asparagine Incorrect aspartic acid Incorrect glutamine Incorrect proline Correct threonine Incorrect MC

cd68_f2df

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Correct glutamic acid Incorrect leucine Incorrect lysine Incorrect valine Incorrect MC

2214_8ec4

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

cysteine Correct glutamic acid Incorrect glutamine Incorrect leucine Incorrect methionine Incorrect MC

4c41_19b7

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

alanine Incorrect glutamic acid Incorrect glutamine Incorrect histidine Incorrect valine Correct MC

e2a2_cfaf

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

asparagine Incorrect cysteine Incorrect glutamic acid Incorrect lysine Incorrect serine Correct MC

fb08_481f

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

alanine Incorrect arginine Incorrect aspartic acid Incorrect histidine Correct phenylalanine Incorrect MC

86f1_5441

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

isoleucine Correct lysine Incorrect phenylalanine Incorrect serine Incorrect valine Incorrect MC

fa42_eb81

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

aspartic acid Incorrect cysteine Incorrect glutamate Incorrect leucine Correct valine Incorrect MC

359b_9502

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

alanine Incorrect asparagine Incorrect cysteine Incorrect histidine Incorrect valine Correct MC

a574_bac6

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

aspartic acid Incorrect leucine Correct methionine Incorrect threonine Incorrect valine Incorrect MC

2214_830f

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

cysteine Correct glutamate Incorrect histidine Incorrect leucine Incorrect valine Incorrect MC

589c_50b4

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

arginine Incorrect aspartic acid Correct cysteine Incorrect methionine Incorrect tryptophan Incorrect MC

dec5_9b2c

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

alanine Incorrect aspartate Incorrect cysteine Correct glutamate Incorrect tyrosine Incorrect MC

3c5e_ca02

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

arginine Incorrect aspartic acid Incorrect cysteine Incorrect leucine Correct lysine Incorrect MC

fb08_3637

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

arginine Incorrect asparagine Incorrect cysteine Incorrect histidine Correct lysine Incorrect MC

1ae3_e4d1

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

cysteine Incorrect glutamic acid Correct glycine Incorrect phenylalanine Incorrect tyrosine Incorrect MC

a009_63c9

Which one of the following amino acids correspond to the description 'a small amino acid with a single hydrogen atom as its side chain'.

alanine Incorrect aspartic acid Incorrect glutamate Incorrect glycine Correct isoleucine Incorrect MC

a009_d03d

Which one of the following amino acids correspond to the description 'a small amino acid with a single hydrogen atom as its side chain'.

cysteine Incorrect glutamic acid Incorrect glycine Correct serine Incorrect valine Incorrect MC

4c41_935b

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

asparagine Incorrect glutamine Incorrect methionine Incorrect tryptophan Incorrect valine Correct MC

735f_819d

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

arginine Incorrect glutamate Incorrect proline Incorrect serine Incorrect tryptophan Correct MC

c6d9_1d3d

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a valine with a extra methyl group (-CH3) at the end'.

alanine Incorrect cysteine Incorrect glutamic acid Incorrect histidine Incorrect isoleucine Correct MC

1ae3_5dc8

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

aspartate Incorrect glutamic acid Correct histidine Incorrect leucine Incorrect serine Incorrect MC

cd68_3539

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

alanine Incorrect asparagine Correct phenylalanine Incorrect proline Incorrect threonine Incorrect MC

fb08_e43e

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

arginine Incorrect asparagine Incorrect aspartate Incorrect histidine Correct isoleucine Incorrect MC

83db_ea27

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

arginine Incorrect glutamate Incorrect proline Correct threonine Incorrect tyrosine Incorrect MC

d837_8d4a

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

asparagine Incorrect aspartate Incorrect cysteine Incorrect glutamine Incorrect lysine Correct MC

359b_5a84

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

cysteine Incorrect glycine Incorrect histidine Incorrect isoleucine Incorrect valine Correct MC

d837_a1e7

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

cysteine Incorrect histidine Incorrect lysine Correct serine Incorrect threonine Incorrect MC

c6d9_3381

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a valine with a extra methyl group (-CH3) at the end'.

histidine Incorrect isoleucine Correct lysine Incorrect serine Incorrect tryptophan Incorrect MC

5014_d94c

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

alanine Incorrect aspartic acid Incorrect glycine Correct proline Incorrect tryptophan Incorrect MC

fb08_4f95

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

asparagine Incorrect histidine Correct isoleucine Incorrect threonine Incorrect tryptophan Incorrect MC

d837_cb22

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

cysteine Incorrect glutamate Incorrect isoleucine Incorrect lysine Correct threonine Incorrect MC

cd68_f770

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Correct aspartate Incorrect glutamate Incorrect phenylalanine Incorrect valine Incorrect MC

a574_ca02

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

arginine Incorrect aspartic acid Incorrect cysteine Incorrect leucine Correct lysine Incorrect MC

3b32_b5de

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with a single methyl group (-CH3) as its side chain'.

alanine Correct cysteine Incorrect glutamate Incorrect leucine Incorrect lysine Incorrect MC

4c41_144d

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

asparagine Incorrect glutamine Incorrect methionine Incorrect threonine Incorrect valine Correct MC

86f1_59c3

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

asparagine Incorrect glutamine Incorrect isoleucine Correct tryptophan Incorrect tyrosine Incorrect MC

2214_56b2

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

asparagine Incorrect cysteine Correct glycine Incorrect leucine Incorrect tyrosine Incorrect MC

a461_a0b3

Which one of the following amino acids correspond to the description 'a non-polar amino acid with a side chain containing a sulfur atom that is NOT available for chemical reactions'.

aspartic acid Incorrect glutamine Incorrect methionine Correct serine Incorrect tyrosine Incorrect MC

359b_d0da

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

aspartic acid Incorrect leucine Incorrect proline Incorrect serine Incorrect valine Correct MC

091c_fa04

Which one of the following amino acids correspond to the description 'a polar amino acid that is a methylated form of serine'.

proline Incorrect threonine Correct tryptophan Incorrect tyrosine Incorrect valine Incorrect MC

7f7d_9fca

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing 3 nitrogen atoms (guanidinium)'.

arginine Correct glutamate Incorrect isoleucine Incorrect proline Incorrect serine Incorrect MC

86f1_5752

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

glycine Incorrect isoleucine Correct leucine Incorrect lysine Incorrect valine Incorrect MC

fb08_2827

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

arginine Incorrect aspartic acid Incorrect glutamine Incorrect histidine Correct tryptophan Incorrect MC

2214_5d3c

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

asparagine Incorrect cysteine Correct leucine Incorrect lysine Incorrect proline Incorrect MC

fb08_2c1c

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

glutamic acid Incorrect histidine Correct lysine Incorrect serine Incorrect tryptophan Incorrect MC

091c_4cc5

Which one of the following amino acids correspond to the description 'a polar amino acid that is a methylated form of serine'.

glutamine Incorrect histidine Incorrect lysine Incorrect serine Incorrect threonine Correct MC

a574_c331

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

arginine Incorrect leucine Correct lysine Incorrect proline Incorrect tryptophan Incorrect MC

1c3a_6066

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct aspartate Incorrect glycine Incorrect leucine Incorrect proline Incorrect MC

3c5e_e8e2

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

aspartic acid Incorrect leucine Correct proline Incorrect threonine Incorrect tryptophan Incorrect MC

a461_77bb

Which one of the following amino acids correspond to the description 'a non-polar amino acid with a side chain containing a sulfur atom that is NOT available for chemical reactions'.

aspartate Incorrect cysteine Incorrect glycine Incorrect methionine Correct threonine Incorrect MC

3c5e_6269

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

glutamic acid Incorrect glutamine Incorrect leucine Correct proline Incorrect valine Incorrect MC

83db_cad5

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

glutamate Incorrect histidine Incorrect lysine Incorrect proline Correct tyrosine Incorrect MC

d837_003d

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

alanine Incorrect cysteine Incorrect lysine Correct serine Incorrect tyrosine Incorrect MC

735f_a9b9

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

aspartate Incorrect leucine Incorrect lysine Incorrect tryptophan Correct tyrosine Incorrect MC

2694_89a1

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

alanine Incorrect arginine Incorrect glutamine Correct isoleucine Incorrect leucine Incorrect MC

1c3a_37b5

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct cysteine Incorrect glutamine Incorrect lysine Incorrect threonine Incorrect MC

ea6c_abcc

Which one of the following amino acids correspond to the description 'a aromatic amino acid with a side chain containing a phenol (-C6H6OH) group, derived from phenylalanine'.

aspartate Incorrect methionine Incorrect proline Incorrect tyrosine Correct valine Incorrect MC

83db_2728

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

aspartate Incorrect cysteine Incorrect glutamate Incorrect proline Correct threonine Incorrect MC

83db_3c31

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

asparagine Incorrect aspartate Incorrect proline Correct tryptophan Incorrect tyrosine Incorrect MC

4c41_c52e

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

arginine Incorrect glutamine Incorrect glycine Incorrect threonine Incorrect valine Correct MC

5014_facf

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

cysteine Incorrect glycine Correct isoleucine Incorrect lysine Incorrect methionine Incorrect MC

a574_814e

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

aspartate Incorrect histidine Incorrect leucine Correct serine Incorrect valine Incorrect MC

86f1_a8af

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

alanine Incorrect aspartic acid Incorrect isoleucine Correct methionine Incorrect valine Incorrect MC

d837_66bd

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

glutamic acid Incorrect lysine Correct phenylalanine Incorrect serine Incorrect tryptophan Incorrect MC

9acc_7a7b

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

aspartic acid Incorrect cysteine Correct isoleucine Incorrect leucine Incorrect proline Incorrect MC

2694_b386

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

alanine Incorrect glutamine Correct leucine Incorrect serine Incorrect valine Incorrect MC

2214_6fe8

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

arginine Incorrect cysteine Correct glutamine Incorrect proline Incorrect tryptophan Incorrect MC

3c5e_9e05

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

aspartic acid Incorrect glutamic acid Incorrect glutamine Incorrect leucine Correct proline Incorrect MC

ea6c_6232

Which one of the following amino acids correspond to the description 'a aromatic amino acid with a side chain containing a phenol (-C6H6OH) group, derived from phenylalanine'.

aspartic acid Incorrect glutamic acid Incorrect glutamine Incorrect tryptophan Incorrect tyrosine Correct MC

83db_584a

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

asparagine Incorrect proline Correct serine Incorrect threonine Incorrect tryptophan Incorrect MC

a574_2be4

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

asparagine Incorrect isoleucine Incorrect leucine Correct threonine Incorrect tyrosine Incorrect MC

1c3a_05b1

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct isoleucine Incorrect leucine Incorrect serine Incorrect valine Incorrect MC

a009_b6df

Which one of the following amino acids correspond to the description 'a small amino acid with a single hydrogen atom as its side chain'.

glutamate Incorrect glycine Correct isoleucine Incorrect leucine Incorrect valine Incorrect MC

fa42_ee92

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

arginine Incorrect aspartate Incorrect leucine Correct serine Incorrect tryptophan Incorrect MC

889f_d6a4

Which one of the following amino acids correspond to the description 'a non-polar amino acid with an aromatic side chain containing a single benzene (-C6H6) ring'.

alanine Incorrect cysteine Incorrect glutamine Incorrect histidine Incorrect phenylalanine Correct MC

5014_2fed

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

aspartic acid Incorrect glycine Correct isoleucine Incorrect methionine Incorrect tryptophan Incorrect MC

359b_64c8

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

alanine Incorrect cysteine Incorrect histidine Incorrect methionine Incorrect valine Correct MC

2694_bef3

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

alanine Incorrect asparagine Incorrect cysteine Incorrect glutamine Correct threonine Incorrect MC

889f_2ce4

Which one of the following amino acids correspond to the description 'a non-polar amino acid with an aromatic side chain containing a single benzene (-C6H6) ring'.

alanine Incorrect aspartate Incorrect glycine Incorrect isoleucine Incorrect phenylalanine Correct MC

1ae3_2f86

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

alanine Incorrect aspartic acid Incorrect glutamate Correct leucine Incorrect proline Incorrect MC

1ae3_142c

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

arginine Incorrect glutamate Correct isoleucine Incorrect leucine Incorrect lysine Incorrect MC

735f_1fcb

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

asparagine Incorrect glycine Incorrect isoleucine Incorrect tryptophan Correct valine Incorrect MC

9acc_3b0f

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

asparagine Incorrect aspartate Incorrect cysteine Correct leucine Incorrect proline Incorrect MC

1ae3_181b

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

glutamate Correct glycine Incorrect lysine Incorrect phenylalanine Incorrect tyrosine Incorrect MC

889f_6b3f

Which one of the following amino acids correspond to the description 'a non-polar amino acid with an aromatic side chain containing a single benzene (-C6H6) ring'.

alanine Incorrect glutamic acid Incorrect histidine Incorrect leucine Incorrect phenylalanine Correct MC

c6d9_c365

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a valine with a extra methyl group (-CH3) at the end'.

cysteine Incorrect glycine Incorrect isoleucine Correct lysine Incorrect proline Incorrect MC

3b32_326d

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with a single methyl group (-CH3) as its side chain'.

alanine Correct arginine Incorrect aspartic acid Incorrect glutamine Incorrect tryptophan Incorrect MC

cd68_10f0

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Correct glutamic acid Incorrect glutamine Incorrect glycine Incorrect threonine Incorrect MC

a574_8182

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

cysteine Incorrect glutamate Incorrect leucine Correct lysine Incorrect valine Incorrect MC

3c5e_895b

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

aspartate Incorrect glutamate Incorrect leucine Correct methionine Incorrect proline Incorrect MC

dec5_8592

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

aspartate Incorrect cysteine Correct glutamine Incorrect tryptophan Incorrect valine Incorrect MC

fb08_8100

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

glycine Incorrect histidine Correct lysine Incorrect methionine Incorrect phenylalanine Incorrect MC

dec5_c88a

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

aspartate Incorrect cysteine Correct leucine Incorrect methionine Incorrect serine Incorrect MC

a574_68ba

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

asparagine Incorrect glutamic acid Incorrect glycine Incorrect leucine Correct lysine Incorrect MC

d837_e0d1

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

aspartate Incorrect leucine Incorrect lysine Correct proline Incorrect threonine Incorrect MC

ea6c_2dbf

Which one of the following amino acids correspond to the description 'a aromatic amino acid with a side chain containing a phenol (-C6H6OH) group, derived from phenylalanine'.

glutamate Incorrect glutamine Incorrect phenylalanine Incorrect proline Incorrect tyrosine Correct MC

dec5_3b9a

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

alanine Incorrect arginine Incorrect cysteine Correct glycine Incorrect tyrosine Incorrect MC

a574_c47d

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

aspartic acid Incorrect glycine Incorrect histidine Incorrect leucine Correct tyrosine Incorrect MC

ea6c_ff00

Which one of the following amino acids correspond to the description 'a aromatic amino acid with a side chain containing a phenol (-C6H6OH) group, derived from phenylalanine'.

alanine Incorrect glycine Incorrect leucine Incorrect phenylalanine Incorrect tyrosine Correct MC

fa42_7bab

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

aspartic acid Incorrect glutamine Incorrect isoleucine Incorrect leucine Correct tryptophan Incorrect MC

5014_bb18

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

alanine Incorrect aspartic acid Incorrect glycine Correct histidine Incorrect methionine Incorrect MC

3462_c5c6

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

aspartic acid Incorrect glutamic acid Incorrect histidine Incorrect leucine Incorrect serine Correct MC

735f_cf1f

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

aspartic acid Incorrect glutamate Incorrect glutamine Incorrect leucine Incorrect tryptophan Correct MC

4c41_1bf3

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

arginine Incorrect glycine Incorrect threonine Incorrect tyrosine Incorrect valine Correct MC

3b32_ef6a

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with a single methyl group (-CH3) as its side chain'.

alanine Correct glutamine Incorrect lysine Incorrect tryptophan Incorrect valine Incorrect MC

a574_cab7

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

alanine Incorrect asparagine Incorrect glutamate Incorrect histidine Incorrect leucine Correct MC

1ae3_dcf2

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

arginine Incorrect glutamate Correct glutamine Incorrect glycine Incorrect isoleucine Incorrect MC

3c5e_8cc3

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

arginine Incorrect aspartic acid Incorrect histidine Incorrect leucine Correct tryptophan Incorrect MC

3c5e_27c7

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

arginine Incorrect asparagine Incorrect glutamic acid Incorrect leucine Correct lysine Incorrect MC

1c3a_9a2b

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct glutamic acid Incorrect histidine Incorrect lysine Incorrect phenylalanine Incorrect MC

589c_c55d

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

aspartate Correct glycine Incorrect lysine Incorrect phenylalanine Incorrect serine Incorrect MC

3b32_d722

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with a single methyl group (-CH3) as its side chain'.

alanine Correct cysteine Incorrect glutamic acid Incorrect methionine Incorrect tryptophan Incorrect MC

9acc_b2c1

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

aspartate Incorrect cysteine Correct glutamic acid Incorrect methionine Incorrect tryptophan Incorrect MC

fa42_7e68

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

glutamate Incorrect glycine Incorrect isoleucine Incorrect leucine Correct phenylalanine Incorrect MC

3462_5a5c

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

glutamic acid Incorrect leucine Incorrect methionine Incorrect serine Correct threonine Incorrect MC

5014_cbed

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

asparagine Incorrect cysteine Incorrect glycine Correct histidine Incorrect methionine Incorrect MC

359b_fbb2

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

glutamate Incorrect proline Incorrect serine Incorrect threonine Incorrect valine Correct MC

091c_b5a8

Which one of the following amino acids correspond to the description 'a polar amino acid that is a methylated form of serine'.

aspartate Incorrect glycine Incorrect lysine Incorrect serine Incorrect threonine Correct MC

2214_8a47

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

cysteine Correct glutamate Incorrect glycine Incorrect lysine Incorrect tyrosine Incorrect MC

589c_2d2d

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

aspartic acid Correct glycine Incorrect lysine Incorrect serine Incorrect threonine Incorrect MC

3462_98d4

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

arginine Incorrect methionine Incorrect proline Incorrect serine Correct valine Incorrect MC

e2a2_9191

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

arginine Incorrect glutamic acid Incorrect methionine Incorrect serine Correct threonine Incorrect MC

5014_dcbd

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

glutamate Incorrect glycine Correct methionine Incorrect proline Incorrect valine Incorrect MC

cd68_3d67

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Correct isoleucine Incorrect leucine Incorrect methionine Incorrect phenylalanine Incorrect MC

fa42_0bd0

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

glutamate Incorrect glycine Incorrect leucine Correct methionine Incorrect serine Incorrect MC

3462_a7d8

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

arginine Incorrect glutamic acid Incorrect isoleucine Incorrect serine Correct threonine Incorrect MC

fb08_9818

Which one of the following amino acids correspond to the description 'an aromatic amino acid with a side chain containing a 5-membered nitrogenous ring and a pKa close to pH 7'.

alanine Incorrect aspartate Incorrect histidine Correct phenylalanine Incorrect tryptophan Incorrect MC

e2a2_ee15

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

asparagine Incorrect proline Incorrect serine Correct threonine Incorrect valine Incorrect MC

1ae3_4701

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

alanine Incorrect arginine Incorrect glutamic acid Correct tyrosine Incorrect valine Incorrect MC

735f_093a

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

alanine Incorrect asparagine Incorrect aspartic acid Incorrect proline Incorrect tryptophan Correct MC

3462_1078

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

histidine Incorrect isoleucine Incorrect leucine Incorrect phenylalanine Incorrect serine Correct MC

cd68_9630

Which one of the following amino acids correspond to the description 'a polar amino acid with a shorter amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Correct aspartate Incorrect histidine Incorrect phenylalanine Incorrect proline Incorrect MC

589c_f618

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

asparagine Incorrect aspartate Correct cysteine Incorrect glycine Incorrect serine Incorrect MC

e2a2_ca1d

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

cysteine Incorrect glutamic acid Incorrect leucine Incorrect phenylalanine Incorrect serine Correct MC

3c5e_d3a3

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

glutamic acid Incorrect histidine Incorrect leucine Correct phenylalanine Incorrect tryptophan Incorrect MC

ea6c_594b

Which one of the following amino acids correspond to the description 'a aromatic amino acid with a side chain containing a phenol (-C6H6OH) group, derived from phenylalanine'.

alanine Incorrect asparagine Incorrect glycine Incorrect lysine Incorrect tyrosine Correct MC

2694_cf21

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

arginine Incorrect cysteine Incorrect glutamic acid Incorrect glutamine Correct tyrosine Incorrect MC

a461_808f

Which one of the following amino acids correspond to the description 'a non-polar amino acid with a side chain containing a sulfur atom that is NOT available for chemical reactions'.

alanine Incorrect asparagine Incorrect methionine Correct proline Incorrect tyrosine Incorrect MC

c6d9_cef6

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a valine with a extra methyl group (-CH3) at the end'.

alanine Incorrect aspartic acid Incorrect histidine Incorrect isoleucine Correct threonine Incorrect MC

3462_b07b

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

alanine Incorrect arginine Incorrect cysteine Incorrect histidine Incorrect serine Correct MC

359b_036d

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

alanine Incorrect aspartic acid Incorrect proline Incorrect threonine Incorrect valine Correct MC

2694_c622

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

cysteine Incorrect glutamine Correct isoleucine Incorrect methionine Incorrect threonine Incorrect MC

735f_43eb

Which one of the following amino acids correspond to the description 'an aromatic amino acid with the largest side chain consisting of a fused pair of rings'.

aspartate Incorrect leucine Incorrect tryptophan Correct tyrosine Incorrect valine Incorrect MC

2694_9b66

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

glutamic acid Incorrect glutamine Correct glycine Incorrect isoleucine Incorrect threonine Incorrect MC

4c41_e9c5

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

methionine Incorrect phenylalanine Incorrect threonine Incorrect tyrosine Incorrect valine Correct MC

dec5_f7a1

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

cysteine Correct glutamic acid Incorrect glutamine Incorrect lysine Incorrect proline Incorrect MC

d837_1fff

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

isoleucine Incorrect lysine Correct proline Incorrect threonine Incorrect tryptophan Incorrect MC

9acc_fbb0

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

cysteine Correct glutamate Incorrect glutamine Incorrect histidine Incorrect threonine Incorrect MC

a461_0e40

Which one of the following amino acids correspond to the description 'a non-polar amino acid with a side chain containing a sulfur atom that is NOT available for chemical reactions'.

asparagine Incorrect aspartic acid Incorrect methionine Correct proline Incorrect tryptophan Incorrect MC

359b_ed31

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a shorter version of leucine'.

asparagine Incorrect glutamine Incorrect serine Incorrect tryptophan Incorrect valine Correct MC

e2a2_d337

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

aspartate Incorrect glutamic acid Incorrect isoleucine Incorrect serine Correct valine Incorrect MC

2214_7270

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

asparagine Incorrect cysteine Correct glutamate Incorrect glutamine Incorrect threonine Incorrect MC

3b32_a449

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with a single methyl group (-CH3) as its side chain'.

alanine Correct aspartic acid Incorrect cysteine Incorrect isoleucine Incorrect lysine Incorrect MC

fa42_9d1c

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

glutamate Incorrect leucine Correct phenylalanine Incorrect proline Incorrect valine Incorrect MC

e2a2_0ee3

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest polar side chain'.

arginine Incorrect histidine Incorrect leucine Incorrect phenylalanine Incorrect serine Correct MC

589c_82e2

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

asparagine Incorrect aspartic acid Correct histidine Incorrect lysine Incorrect valine Incorrect MC

83db_4558

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

glutamic acid Incorrect phenylalanine Incorrect proline Correct threonine Incorrect tryptophan Incorrect MC

dec5_302e

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

arginine Incorrect aspartic acid Incorrect cysteine Correct isoleucine Incorrect valine Incorrect MC

589c_2216

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

alanine Incorrect arginine Incorrect aspartic acid Correct leucine Incorrect proline Incorrect MC

2214_5734

Which one of the following amino acids correspond to the description 'a polar amino acid that is capable of thiol (-SH) chemistry'.

aspartate Incorrect cysteine Correct glutamate Incorrect histidine Incorrect tyrosine Incorrect MC

589c_c281

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a small, carboxylate (-COOH) side chain'.

alanine Incorrect aspartic acid Correct glutamic acid Incorrect proline Incorrect tyrosine Incorrect MC

83db_4400

Which one of the following amino acids correspond to the description 'a non-polar amino acid where the side chain is bonded to the backbone amine, resulting in a rigid cyclic structure'.

arginine Incorrect aspartic acid Incorrect phenylalanine Incorrect proline Correct threonine Incorrect MC

6739_9aef

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated β-carbon'.

cysteine Incorrect isoleucine Incorrect serine Incorrect tryptophan Incorrect valine Correct MC

a461_e966

Which one of the following amino acids correspond to the description 'a non-polar amino acid with a side chain containing a sulfur atom that is NOT available for chemical reactions'.

alanine Incorrect aspartate Incorrect glutamic acid Incorrect methionine Correct threonine Incorrect MC

1c3a_a78e

Which one of the following amino acids correspond to the description 'a non-polar amino acid, with only a methyl group (-CH3) attached to the α-carbon'.

alanine Correct glycine Incorrect histidine Incorrect phenylalanine Incorrect serine Incorrect MC

86f1_a783

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of leucine'.

asparagine Incorrect glycine Incorrect histidine Incorrect isoleucine Correct valine Incorrect MC

091c_b978

Which one of the following amino acids correspond to the description 'a polar amino acid that is a methylated form of serine'.

alanine Incorrect arginine Incorrect glutamic acid Incorrect glutamine Incorrect threonine Correct MC

fa42_c83e

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

asparagine Incorrect glutamine Incorrect leucine Correct proline Incorrect serine Incorrect MC

9acc_c537

Which one of the following amino acids correspond to the description 'a polar amino acid that can form disulfide bridges'.

asparagine Incorrect cysteine Correct glutamine Incorrect threonine Incorrect valine Incorrect MC

4c41_5d64

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with the shortest hydrophobic side chain'.

cysteine Incorrect isoleucine Incorrect serine Incorrect tyrosine Incorrect valine Correct MC

d837_14f0

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

aspartate Incorrect leucine Incorrect lysine Correct methionine Incorrect phenylalanine Incorrect MC

c6d9_c79c

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a valine with a extra methyl group (-CH3) at the end'.

cysteine Incorrect isoleucine Correct lysine Incorrect serine Incorrect tryptophan Incorrect MC

1ae3_648b

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

aspartic acid Incorrect glutamate Correct histidine Incorrect lysine Incorrect proline Incorrect MC

3c5e_655e

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is an isomer of isoleucine'.

aspartate Incorrect histidine Incorrect leucine Correct methionine Incorrect phenylalanine Incorrect MC

3462_813f

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

aspartic acid Incorrect glycine Incorrect lysine Incorrect serine Correct valine Incorrect MC

7f7d_0c39

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing 3 nitrogen atoms (guanidinium)'.

arginine Correct asparagine Incorrect aspartic acid Incorrect glutamine Incorrect threonine Incorrect MC

5014_1b3d

Which one of the following amino acids correspond to the description 'a small amino acid with the simple chemical formula NH2-CH2-COOH'.

alanine Incorrect glutamic acid Incorrect glycine Correct proline Incorrect valine Incorrect MC

fa42_052a

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid that is a longer version of valine'.

glutamate Incorrect glutamine Incorrect leucine Correct lysine Incorrect proline Incorrect MC

3462_b2f5

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

cysteine Incorrect leucine Incorrect phenylalanine Incorrect serine Correct tyrosine Incorrect MC

dec5_9879

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

alanine Incorrect aspartate Incorrect cysteine Correct histidine Incorrect methionine Incorrect MC

2694_02bc

Which one of the following amino acids correspond to the description 'a polar amino acid with a longer amine-substituted carboxylate (amide) -C(=O)NH2 group'.

asparagine Incorrect aspartic acid Incorrect glutamate Incorrect glutamine Correct leucine Incorrect MC

1ae3_6743

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

alanine Incorrect asparagine Incorrect glutamic acid Correct histidine Incorrect leucine Incorrect MC

1ae3_945f

Which one of the following amino acids correspond to the description 'a negatively charged amino acid with a large, carboxylate (-COOH) side chain'.

alanine Incorrect glutamate Correct isoleucine Incorrect lysine Incorrect phenylalanine Incorrect MC

3462_ba3e

Which one of the following amino acids correspond to the description 'a polar amino acid with the smallest side chain containing a hydroxyl group (-OH)'.

asparagine Incorrect glycine Incorrect leucine Incorrect phenylalanine Incorrect serine Correct MC

d837_327d

Which one of the following amino acids correspond to the description 'a positively charged amino acid with a long, flexible side chain containing an amine group'.

aspartate Incorrect glutamic acid Incorrect histidine Incorrect lysine Correct tryptophan Incorrect MC

dec5_6427

Which one of the following amino acids correspond to the description 'a polar amino acid with a thiol (-SH) group that can form disulfide bonds'.

aspartic acid Incorrect cysteine Correct proline Incorrect threonine Incorrect tryptophan Incorrect MC

a574_42e2

Which one of the following amino acids correspond to the description 'a non-polar branched chain amino acid with a double methylated γ-carbon'.

glutamic acid Incorrect leucine Correct lysine Incorrect proline Incorrect serine Incorrect