MC

6a9a_846d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.7?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

b30b_c9c4

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.7?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

4f82_9259

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

3d31_6cb9

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

bfe1_eb19

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Correct MC

f491_ff6e

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

ebde_308f

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.1?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

4c16_36e5

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

1b3b_f3ae

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

85b6_2cdb

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.0?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

60a5_96f1

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

9f3e_47bc

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

9613_c570

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.8?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

c2aa_497d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

84b8_8b4a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

05fc_c994

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.3?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

b38d_20e1

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.5?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Correct MC

5ca1_0e77

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.2?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

1bbd_cedb

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

5b7a_527b

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.8?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Correct MC

a2b2_be9e

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

26b7_0ce6

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.1?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

a67b_e7b5

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

d395_78ae

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.2?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

e167_6daf

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.2?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

8f89_d9a5

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

c895_0e3a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.3?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

dceb_c0fb

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

c813_2ad8

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.1?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

745d_cc89

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.6?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Correct
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

7ba5_6e0c

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

b205_5352

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.2?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

90c6_3938

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.7?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

2c88_874c

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Correct MC

1182_71f2

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Correct MC

27b9_ab87

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

b934_03b9

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

0e4b_b286

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.5?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

39f8_2886

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

ab19_006d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.9?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

5482_28e0

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.9?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

1104_07b8

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.3?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

ac44_b6ac

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.1?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

48df_0661

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.0?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

45bd_ed8a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.9?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

9a7f_3ef0

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

0474_6d7e

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

100a_23c0

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

4629_27b3

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

2d86_f662

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

ead0_d879

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

6a1c_a5c7

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.5?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

b9b2_2c2d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

5790_f3b0

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

d75c_75ed

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.7?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

0a82_2e7f

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.0?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

5716_d3b2

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

1a35_d90a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

78b7_ea0f

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.8?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

ee19_12ba

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

d189_f0da

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

843e_6109

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

c322_e914

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.5?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

f87b_cac2

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

a126_7dc7

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

e426_e145

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

3870_9385

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.0?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

d652_d2fd

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

b019_0646

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

dd63_072d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.6?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

5d29_132b

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.5?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

91c8_7d2f

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

6023_f7cf

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

33c7_570a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.6?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

8e87_f69b

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

719a_8fc5

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

b83a_4028

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

612d_11da

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

e0ef_eee0

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

3f2d_75e7

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

569e_1d89

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

dbb6_bf53

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

3512_4fa5

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.9?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

7288_fd99

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

0f45_8f50

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.0?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Correct MC

7553_b740

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

2631_339b

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

00bd_ccab

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

7ee4_5f13

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 12.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

a88d_8c22

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.4?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

32c9_7820

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Correct MC

5ebd_f95e

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.8?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

f59f_fe4d

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Correct
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

7f6c_beb6

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.2?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

ad4a_561a

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

c91d_8a69

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.4?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

8e01_1a12

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

1ce0_aaa2

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 7.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

d9aa_b864

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 8.3?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

ff26_1cdb

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 11.1?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Correct MC

42e0_5d65

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.1?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Correct MC

16df_74ea

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

370e_7972

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

6b12_e6e4

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 4.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

9c2c_2c74

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 2.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COOH
Amino: NH2
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

9501_a114

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.7?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH2
Correct
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

ba26_ce84

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 9.9?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Correct
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

9bf7_7861

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.3?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

2c0e_89af

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.2?

Select one answer.

A.
Carboxyl: COOH
Amino: NH3+
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

f244_618b

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 6.8?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COO-
Amino: NH2
Incorrect MC

feae_ad47

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 5.6?

Select one answer.

A.
Carboxyl: COO-
Amino: NH3+
Correct
B.
Carboxyl: COO-
Amino: NH2
Incorrect
C.
Carboxyl: COOH
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

ffa0_17d6

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.3?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

5daf_2e32

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.7?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Incorrect
C.
Carboxyl: COO-
Amino: NH3+
Correct
D.
Carboxyl: COOH
Amino: NH2
Incorrect MC

f519_63bf

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 10.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH2
Correct
C.
Carboxyl: COO-
Amino: NH3+
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect MC

49d1_c772

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 1.5?

Select one answer.

A.
Carboxyl: COO-
Amino: NH2
Incorrect
B.
Carboxyl: COOH
Amino: NH3+
Correct
C.
Carboxyl: COOH
Amino: NH2
Incorrect
D.
Carboxyl: COO-
Amino: NH3+
Incorrect MC

c22c_3691

Alanine Charge States

Alanine has two pKa values: 2.34 and 9.69.

Question: Which one of the following is the correct charge state of alanine at pH 3.0?

Select one answer.

A.
Carboxyl: COOH
Amino: NH2
Incorrect
B.
Carboxyl: COO-
Amino: NH3+
Correct
C.
Carboxyl: COO-
Amino: NH2
Incorrect
D.
Carboxyl: COOH
Amino: NH3+
Incorrect