Function and Pathway for Vitamins

Question 1

Carboxylation

Answer 1

Biotin

Question 2

Acetyl-CoA carboxylase (FA synthesis), pyruvate carboxylase (gluconeogenesis), propionyl-CoA carboxylase (odd-chain FA degradation/ oxidation)

Answer 2

Biotin

Question 3

Active form of Biotin

Answer 3

Biotin

Question 4

Active form of B5 or pantothenate

Answer 4

CoA

Question 5

Function: Activates substrates/ intermediates; protein acetylation

Answer 5

B5

Question 6

Many examples (acetyl-CoA, malonyl-CoA, etc.) in glycolysis/ TCA; FA synthesis and oxidation, etc.

Answer 6

B5

Question 7

Name for B2

Answer 7

Riboflavin

Question 8

FAD(H2)

Answer 8

Active form of B2

Question 9

Oxidation-reduction reactions

Answer 9

B2

Question 10

TCA cycle; FA Beta-oxidation

Answer 10

B2

Question 11

PLP

Answer 11

B6

Question 12

Transamination; decarboxylation; transsulfuration; glycogenolysis

Answer 12

B6

Question 13

AA to KA (gluconeogenesis); heme synthesis; neurotransmitter synthesis; homocysteine

Answer 13

B6

Question 14

TPP or TDP

Answer 14

Thiamin B1

Question 15

Oxidative decarboxylation

Answer 15

Thiamine

Question 16

Pyruvate to acetyl-CoA; α-ketoglutarate to succinyl-CoA; HMS as transketolase

Answer 16

Thiamine

Question 17

Vitamin C

Answer 17

ascorbic acid

Question 18

Hydroxylation

Answer 18

Vitamin C

Question 19

Collagen synthesis (OH of pro and lys in collagen); carnitine synthesis; neurotransmitter synthesis

Answer 19

Vitamin C

Question 20

Tetrahydrofolate (polyglutamates)

Answer 20

Folate

Question 21

B9 name

Answer 21

Folate

Question 22

One-carbon transfer

Answer 22

Folate

Question 23

DNA synthesis (uridylate to thymidylate); homocysteine to methionine

Answer 23

Folate

Question 24

Catalyzes the gamma carboxylation of glutamic acid

Answer 24

Vitamin K