05b5

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cholesterol, a cell membrane steroid Incorrect B. the glycolysis enzyme, hexokinase Correct C. creatine, an organic molecule that recharges ATP Incorrect D. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect E. zinc ion, Zn²⁺ Incorrect MC

0974

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine diphosphate (ADP) Incorrect B. vitamin B₁, thiamin Incorrect C. the structural protein, keratin Correct D. flavin adenine dinucleotide (FAD → FADH₂) Incorrect E. creatine, an organic molecule that recharges ATP Incorrect MC

0ec8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect C. cholesterol, a cell membrane steroid Incorrect D. transcription factor proteins Correct E. potassium ion, K⁺ Incorrect MC

1193

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. transcription factor proteins Correct B. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect C. cholesterol, a cell membrane steroid Incorrect D. iron ions, Fe⁺²/Fe⁺³ Incorrect E. vitamin B₂, riboflavin Incorrect MC

1528

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect B. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect C. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. potassium ion, K⁺ Incorrect E. insulin, a hormone and a protein Correct MC

16dc

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. quinone, an organic compound involved in electron transport Incorrect B. manganese ions (Mn²⁺) Incorrect C. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. vitamin B₃, niacin Incorrect E. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct MC

1b1e

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₆, pyridoxamine Incorrect B. potassium ion, K⁺ Incorrect C. the oxygen transport protein, hemoglobin Correct D. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect E. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect MC

1c0d

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect B. the oxygen transport protein, hemoglobin Correct C. flavin adenine dinucleotide (FAD → FADH₂) Incorrect D. zinc ion, Zn²⁺ Incorrect E. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

1d8d

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine diphosphate (ADP) Incorrect B. tetrahydrofolate (THF), a form of folic acid, Vitamin B₉ Incorrect C. polyalanine peptide Correct D. chloride ion, Cl^- Incorrect E. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect MC

1f37

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₁₂, cobalamins Incorrect B. calcium ion, Ca²⁺ Incorrect C. coenzyme A (CoA) Incorrect D. insulin, a hormone and a protein Correct E. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

2312

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. immunoglobulin proteins Correct B. coenzyme A (CoA) Incorrect C. vitamin B₇, biotin Incorrect D. iron ions, Fe⁺²/Fe⁺³ Incorrect E. quinone, an organic compound involved in electron transport Incorrect MC

277a

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect B. adenosine triphosphate (ATP) Incorrect C. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect D. vitamin B₆, pyridoxamine Incorrect E. polyalanine peptide Correct MC

2813

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. chloride ion, Cl^- Incorrect B. vitamin B₉, folate Incorrect C. coenzyme Q10, ubiquinone Incorrect D. polyalanine peptide Correct E. quinone, an organic compound involved in electron transport Incorrect MC

2aa9

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. aldosterone, a steroid hormone that acts on the kidney Incorrect B. calcium ion, Ca²⁺ Incorrect C. ACTH protein Correct D. flavin mononucleotide (FMN → FMNH₂) Incorrect E. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect MC

2d2e

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. sodium ion, Na⁺ Incorrect B. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect C. immunoglobulin proteins Correct D. cholesterol, a cell membrane steroid Incorrect E. vitamin B₅, pantothenic acid Incorrect MC

34b3

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. sodium ion, Na⁺ Incorrect C. ACTH protein Correct D. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect E. vitamin B₇, biotin Incorrect MC

3aa6

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. polyalanine peptide Correct B. coenzyme Q10, ubiquinone Incorrect C. adenosine triphosphate (ATP) Incorrect D. creatine, an organic molecule that recharges ATP Incorrect E. zinc ion, Zn²⁺ Incorrect MC

3c2b

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine diphosphate (ADP) Incorrect B. vitamin A, retinol Incorrect C. sodium ion, Na⁺ Incorrect D. polyalanine peptide Correct E. flavin adenine dinucleotide (FAD → FADH₂) Incorrect MC

3f5f

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. flavin adenine dinucleotide (FAD → FADH₂) Incorrect C. quinone, an organic compound involved in electron transport Incorrect D. vitamin A, retinol Incorrect E. polyalanine peptide Correct MC

48b4

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. creatine, an organic molecule that recharges ATP Incorrect B. the glycolysis enzyme, hexokinase Correct C. adenosine monophosphate (AMP) Incorrect D. vitamin B₅, pantothenic acid Incorrect E. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

49af

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. chloride ion, Cl^- Incorrect B. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect C. dehydroepiandrosterone (DHEA), a steroid hormone precursor Incorrect D. the glycolysis enzyme, hexokinase Correct E. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect MC

4b99

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. aldosterone, a steroid hormone that acts on the kidney Incorrect C. adenosine triphosphate (ATP) Incorrect D. potassium ion, K⁺ Incorrect E. the structural protein, keratin Correct MC

4fa2

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. sodium ion, Na⁺ Incorrect B. adenosine monophosphate (AMP) Incorrect C. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect D. polyalanine peptide Correct E. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect MC

4fb0

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect B. vitamin B₇, biotin Incorrect C. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect D. sodium ion, Na⁺ Incorrect E. the glycolysis enzyme, hexokinase Correct MC

503c

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. potassium ion, K⁺ Incorrect B. adenosine monophosphate (AMP) Incorrect C. ACTH protein Correct D. vitamin B₃, niacin Incorrect E. quinone, an organic compound involved in electron transport Incorrect MC

562d

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. insulin, a hormone and a protein Correct C. chloride ion, Cl^- Incorrect D. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect E. vitamin B₇, biotin Incorrect MC

5647

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect B. cholesterol, a cell membrane steroid Incorrect C. adenosine diphosphate (ADP) Incorrect D. ACTH protein Correct E. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect MC

5700

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. ACTH protein Correct B. vitamin B₉, folate Incorrect C. zinc ion, Zn²⁺ Incorrect D. adenosine diphosphate (ADP) Incorrect E. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect MC

597f

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₇, biotin Incorrect B. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect C. adenosine monophosphate (AMP) Incorrect D. the structural protein, keratin Correct E. creatine, an organic molecule that recharges ATP Incorrect MC

59fa

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. ACTH protein Correct B. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect C. chloride ion, Cl^- Incorrect D. methylcobalamin, a form of Vitamin B₁₂ Incorrect E. adenosine monophosphate (AMP) Incorrect MC

5adb

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. quinone, an organic compound involved in electron transport Incorrect C. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. vitamin B₂, riboflavin Incorrect E. the glycolysis enzyme, pyruvate kinase Correct MC

5ddb

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the structural protein, keratin Correct B. adenosine diphosphate (ADP) Incorrect C. vitamin B₇, biotin Incorrect D. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect E. tetrahydrofolate (THF), a form of folic acid, Vitamin B₉ Incorrect MC

5fec

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. adenosine monophosphate (AMP) Incorrect C. aldosterone, a steroid hormone that acts on the kidney Incorrect D. creatine, an organic molecule that recharges ATP Incorrect E. insulin, a hormone and a protein Correct MC

62b7

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. methylcobalamin, a form of Vitamin B₁₂ Incorrect B. vitamin B₂, riboflavin Incorrect C. immunoglobulin proteins Correct D. quinone, an organic compound involved in electron transport Incorrect E. magnesium ion, Mg²⁺ Incorrect MC

6372

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect C. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. the oxygen transport protein, hemoglobin Correct E. vitamin B₁₂, cobalamins Incorrect MC

66b8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. transcription factor proteins Correct B. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect C. vitamin B₂, riboflavin Incorrect D. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect E. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect MC

67c1

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct C. vitamin B₇, biotin Incorrect D. adenosine diphosphate (ADP) Incorrect E. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect MC

6b87

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. adenosine diphosphate (ADP) Incorrect C. the oxygen transport protein, hemoglobin Correct D. quinone, an organic compound involved in electron transport Incorrect E. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

6dd1

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct B. aldosterone, a steroid hormone that acts on the kidney Incorrect C. adenosine diphosphate (ADP) Incorrect D. quinone, an organic compound involved in electron transport Incorrect E. vitamin B₉, folate Incorrect MC

6e63

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. creatine, an organic molecule that recharges ATP Incorrect B. adenosine monophosphate (AMP) Incorrect C. calcium ion, Ca²⁺ Incorrect D. vitamin A, retinol Incorrect E. the glycolysis enzyme, pyruvate kinase Correct MC

6ff3

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect B. creatine, an organic molecule that recharges ATP Incorrect C. insulin, a hormone and a protein Correct D. coenzyme Q10, ubiquinone Incorrect E. vitamin B₅, pantothenic acid Incorrect MC

72da

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₆, pyridoxamine Incorrect B. transcription factor proteins Correct C. adenosine diphosphate (ADP) Incorrect D. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect E. potassium ion, K⁺ Incorrect MC

74f5

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin A, retinol Incorrect B. creatine, an organic molecule that recharges ATP Incorrect C. polyalanine peptide Correct D. copper ion, Cu²⁺ Incorrect E. adenosine monophosphate (AMP) Incorrect MC

7658

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₅, pantothenic acid Incorrect B. the glycolysis enzyme, pyruvate kinase Correct C. quinone, an organic compound involved in electron transport Incorrect D. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect E. flavin mononucleotide (FMN → FMNH₂) Incorrect MC

7e76

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. copper ion, Cu²⁺ Incorrect B. adenosine monophosphate (AMP) Incorrect C. quinone, an organic compound involved in electron transport Incorrect D. the oxygen transport protein, hemoglobin Correct E. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

803f

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin A, retinol Incorrect B. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect C. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect D. adenosine triphosphate (ATP) Incorrect E. polyalanine peptide Correct MC

8232

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. calcium ion, Ca²⁺ Incorrect B. vitamin B₁₂, cobalamins Incorrect C. adenosine diphosphate (ADP) Incorrect D. ACTH protein Correct E. tetrahydrofolate (THF), a form of folic acid, Vitamin B₉ Incorrect MC

8b53

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect C. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect D. magnesium ion, Mg²⁺ Incorrect E. polyalanine peptide Correct MC

8e62

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. quinone, an organic compound involved in electron transport Incorrect B. insulin, a hormone and a protein Correct C. vitamin B₇, biotin Incorrect D. iron ions, Fe⁺²/Fe⁺³ Incorrect E. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect MC

8f52

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. immunoglobulin proteins Correct B. magnesium ion, Mg²⁺ Incorrect C. vitamin B₉, folate Incorrect D. coenzyme A (CoA) Incorrect E. adenosine monophosphate (AMP) Incorrect MC

917c

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct B. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect C. manganese ions (Mn²⁺) Incorrect D. vitamin B₉, folate Incorrect E. adenosine diphosphate (ADP) Incorrect MC

92cf

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect B. insulin, a hormone and a protein Correct C. adenosine triphosphate (ATP) Incorrect D. sodium ion, Na⁺ Incorrect E. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

9321

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. manganese ions (Mn²⁺) Incorrect B. adenosine monophosphate (AMP) Incorrect C. flavin mononucleotide (FMN → FMNH₂) Incorrect D. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect E. the glycolysis enzyme, pyruvate kinase Correct MC

93ad

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the glycolysis enzyme, pyruvate kinase Correct B. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect C. vitamin B₃, niacin Incorrect D. adenosine triphosphate (ATP) Incorrect E. magnesium ion, Mg²⁺ Incorrect MC

9544

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cholesterol, a cell membrane steroid Incorrect B. iron ions, Fe⁺²/Fe⁺³ Incorrect C. creatine, an organic molecule that recharges ATP Incorrect D. immunoglobulin proteins Correct E. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect MC

9c60

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. potassium ion, K⁺ Incorrect B. the structural protein, keratin Correct C. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect D. coenzyme A (CoA) Incorrect E. vitamin B₉, folate Incorrect MC

9ea9

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. creatine, an organic molecule that recharges ATP Incorrect B. zinc ion, Zn²⁺ Incorrect C. vitamin B₁, thiamin Incorrect D. the structural protein, keratin Correct E. adenosine triphosphate (ATP) Incorrect MC

9f16

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. creatine, an organic molecule that recharges ATP Incorrect B. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct C. chloride ion, Cl^- Incorrect D. adenosine triphosphate (ATP) Incorrect E. coenzyme A (CoA) Incorrect MC

9f56

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. transcription factor proteins Correct C. aldosterone, a steroid hormone that acts on the kidney Incorrect D. creatine, an organic molecule that recharges ATP Incorrect E. manganese ions (Mn²⁺) Incorrect MC

9fe4

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. sodium ion, Na⁺ Incorrect B. transcription factor proteins Correct C. vitamin B₃, niacin Incorrect D. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect E. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect MC

a3b3

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect B. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct C. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect D. zinc ion, Zn²⁺ Incorrect E. adenosine triphosphate (ATP) Incorrect MC

a4e8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. zinc ion, Zn²⁺ Incorrect B. insulin, a hormone and a protein Correct C. adenosine monophosphate (AMP) Incorrect D. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect E. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect MC

a5d7

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. vitamin B₃, niacin Incorrect C. manganese ions (Mn²⁺) Incorrect D. cholesterol, a cell membrane steroid Incorrect E. ACTH protein Correct MC

aa2f

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. insulin, a hormone and a protein Correct B. magnesium ion, Mg²⁺ Incorrect C. coenzyme A (CoA) Incorrect D. vitamin B₇, biotin Incorrect E. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

aaf6

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect B. the oxygen transport protein, hemoglobin Correct C. vitamin B₇, biotin Incorrect D. copper ion, Cu²⁺ Incorrect E. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

afcc

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme A (CoA) Incorrect B. transcription factor proteins Correct C. vitamin B₂, riboflavin Incorrect D. cholesterol, a cell membrane steroid Incorrect E. adenosine diphosphate (ADP) Incorrect MC

b299

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. quinone, an organic compound involved in electron transport Incorrect B. vitamin B₇, biotin Incorrect C. estriol (E3), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. immunoglobulin proteins Correct E. adenosine triphosphate (ATP) Incorrect MC

b6aa

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. potassium ion, K⁺ Incorrect B. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect C. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect D. vitamin B₆, pyridoxamine Incorrect E. transcription factor proteins Correct MC

b817

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect B. aldosterone, a steroid hormone that acts on the kidney Incorrect C. vitamin B₇, biotin Incorrect D. immunoglobulin proteins Correct E. pyridoxal phosphate (PLP), a derivative of Vitamin B₆ Incorrect MC

bbe0

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. the oxygen transport protein, hemoglobin Correct C. quinone, an organic compound involved in electron transport Incorrect D. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect E. copper ion, Cu²⁺ Incorrect MC

bc32

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. ACTH protein Correct B. adenosine diphosphate (ADP) Incorrect C. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect D. vitamin B₇, biotin Incorrect E. quinone, an organic compound involved in electron transport Incorrect MC

bdd2

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect B. vitamin B₃, niacin Incorrect C. quinone, an organic compound involved in electron transport Incorrect D. flavin adenine dinucleotide (FAD → FADH₂) Incorrect E. the structural protein, keratin Correct MC

c270

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cholesterol, a cell membrane steroid Incorrect B. creatine, an organic molecule that recharges ATP Incorrect C. the oxygen transport protein, hemoglobin Correct D. vitamin B₂, riboflavin Incorrect E. iron ions, Fe⁺²/Fe⁺³ Incorrect MC

c47a

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₁₂, cobalamins Incorrect B. the glycolysis enzyme, pyruvate kinase Correct C. copper ion, Cu²⁺ Incorrect D. creatine, an organic molecule that recharges ATP Incorrect E. flavin adenine dinucleotide (FAD → FADH₂) Incorrect MC

c626

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the glycolysis enzyme, pyruvate kinase Correct B. adenosine monophosphate (AMP) Incorrect C. vitamin B₂, riboflavin Incorrect D. aldosterone, a steroid hormone that acts on the kidney Incorrect E. copper ion, Cu²⁺ Incorrect MC

c6c8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₆, pyridoxamine Incorrect B. cholesterol, a cell membrane steroid Incorrect C. quinone, an organic compound involved in electron transport Incorrect D. insulin, a hormone and a protein Correct E. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect MC

c77a

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. methylcobalamin, a form of Vitamin B₁₂ Incorrect B. vitamin B₃, niacin Incorrect C. the glycolysis enzyme, hexokinase Correct D. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect E. adenosine monophosphate (AMP) Incorrect MC

db46

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. progesterone (P4), a steroid hormone involved in the menstrual cycle Incorrect C. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect D. the oxygen transport protein, hemoglobin Correct E. iron ions, Fe⁺²/Fe⁺³ Incorrect MC

dd18

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. cholesterol, a cell membrane steroid Incorrect B. vitamin B₂, riboflavin Incorrect C. zinc ion, Zn²⁺ Incorrect D. transcription factor proteins Correct E. methylcobalamin, a form of Vitamin B₁₂ Incorrect MC

de17

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct B. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect C. testosterone, an anabolic-androgenic steroid and the principal male sex hormone Incorrect D. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect E. vitamin B₁₂, cobalamins Incorrect MC

e1b0

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. iron ions, Fe⁺²/Fe⁺³ Incorrect B. the glycolysis enzyme, hexokinase Correct C. adenosine monophosphate (AMP) Incorrect D. vitamin A, retinol Incorrect E. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect MC

e786

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₂, riboflavin Incorrect B. coenzyme A (CoA) Incorrect C. adenosine triphosphate (ATP) Incorrect D. iron ions, Fe⁺²/Fe⁺³ Incorrect E. the glycolysis enzyme, hexokinase Correct MC

e7c0

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. quinone, an organic compound involved in electron transport Incorrect B. zinc ion, Zn²⁺ Incorrect C. adenosine triphosphate (ATP) Incorrect D. vitamin B₁₂, cobalamins Incorrect E. immunoglobulin proteins Correct MC

e815

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect B. vitamin B₂, riboflavin Incorrect C. testosterone, an anabolic-androgenic steroid and the principal male sex hormone Incorrect D. the structural protein, keratin Correct E. quinone, an organic compound involved in electron transport Incorrect MC

e99b

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect B. the glycolysis enzyme, glyceraldehyde 3-phosphate dehydrogenase Correct C. flavin adenine dinucleotide (FAD → FADH₂) Incorrect D. vitamin B₉, folate Incorrect E. chloride ion, Cl^- Incorrect MC

e9f8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. insulin, a hormone and a protein Correct B. vitamin B₅, pantothenic acid Incorrect C. cholesterol, a cell membrane steroid Incorrect D. zinc ion, Zn²⁺ Incorrect E. quinone, an organic compound involved in electron transport Incorrect MC

ed5d

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. the oxygen transport protein, hemoglobin Correct B. copper ion, Cu²⁺ Incorrect C. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect D. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect E. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect MC

ee46

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₂, riboflavin Incorrect B. insulin, a hormone and a protein Correct C. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect D. progesterone (P4), a steroid hormone involved in the menstrual cycle Incorrect E. adenosine diphosphate (ADP) Incorrect MC

f235

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. copper ion, Cu²⁺ Incorrect B. the organic molecule of a heme porphyrin with an iron ion, Fe²⁺, attached Incorrect C. immunoglobulin proteins Correct D. adenosine triphosphate (ATP) Incorrect E. estradiol (E2), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect MC

f582

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. coenzyme Q10, ubiquinone Incorrect C. immunoglobulin proteins Correct D. iron ions, Fe⁺²/Fe⁺³ Incorrect E. testosterone, an anabolic-androgenic steroid and the principal male sex hormone Incorrect MC

f5f6

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. creatine, an organic molecule that recharges ATP Incorrect B. the glycolysis enzyme, hexokinase Correct C. adenosine diphosphate (ADP) Incorrect D. methylcobalamin, a form of Vitamin B₁₂ Incorrect E. zinc ion, Zn²⁺ Incorrect MC

f6ba

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. vitamin B₇, biotin Incorrect B. ACTH protein Correct C. chloride ion, Cl^- Incorrect D. quinone, an organic compound involved in electron transport Incorrect E. nicotinamide adenine dinucleotide phosphate (NADP⁺ → NADPH) Incorrect MC

f6e8

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect B. transcription factor proteins Correct C. estrone (E1), one of the estrogen steroid hormones responsible for female sex characteristics Incorrect D. calcium ion, Ca²⁺ Incorrect E. vitamin B₅, pantothenic acid Incorrect MC

f8ba

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. immunoglobulin proteins Correct C. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect D. vitamin B₅, pantothenic acid Incorrect E. coenzyme Q10, ubiquinone Incorrect MC

f8fb

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. quinone, an organic compound involved in electron transport Incorrect C. polyalanine peptide Correct D. vitamin B₁₂, cobalamins Incorrect E. adenosine monophosphate (AMP) Incorrect MC

f944

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine monophosphate (AMP) Incorrect B. insulin, a hormone and a protein Correct C. sodium ion, Na⁺ Incorrect D. cortisol, a corticosteroid hormone that is produced in response to stress Incorrect E. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect MC

f987

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. coenzyme Q10, ubiquinone Incorrect B. creatine, an organic molecule that recharges ATP Incorrect C. the oxygen transport protein, hemoglobin Correct D. adenosine triphosphate (ATP) Incorrect E. vitamin B₉, folate Incorrect MC

fde6

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. adenosine triphosphate (ATP) Incorrect B. transcription factor proteins Correct C. quinone, an organic compound involved in electron transport Incorrect D. testosterone, an anabolic-androgenic steroid and the principal male sex hormone Incorrect E. vitamin B₇, biotin Incorrect MC

fdf1

Which one of the following molecular entities CANNOT be classified as an enzymatic cofactor? A. S-adenosyl methionine (SAM), an organic molecule used for methyl group transfer Incorrect B. dehydroepiandrosterone (DHEA), a steroid hormone precursor Incorrect C. the glycolysis enzyme, hexokinase Correct D. adenosine diphosphate (ADP) Incorrect E. nicotinamide adenine dinucleotide (NAD⁺ → NADH) Incorrect