Vitamins as Coenzymes

Question 1

Vitamin B1 name & active form

Answer 1

Name: Thiamine
Active: thiamine pyrophosphate (TPP)

Question 2

Vitamin B2 name & active form

Answer 2

Name: riboflavin
Active: FAD, FADH2, FMN

Question 3

Vitamin B3 name & active form

Answer 3

Name: niacin (niacinamide & nicotinic acid)
Active: NAD+ -> NADH + H+
NADPH + H+ -> NADP+

Question 4

Vitamin B5 name & active form

Answer 4

Name: pantothenic acid
Active: CoASH (Coenzyme A)

Question 5

Vitamin B6 name & active form

Answer 5

Name: pyroxine
Active: pyridoxal 5 phosphate

Question 6

Vitamin B7 name & active form

Answer 6

Name: biotin
Active: carboxybiotin

Question 7

Vitamin C name & active form

Answer 7

Name: ascorbic acid
Active: reduced state

Question 8

Which vitamin contains sulfur?

Answer 8

B1 - Thiamine
| thio = sulfur

Question 9

Which vitamins are involved in Kreb’s cycle?

Answer 9

B1, B2, B3, B5

Question 10

Which Vitamin is involved in fat metabolism?

Answer 10

B3 - Niacin

Question 11

Which vitamin deficiency is caused by birth control pills?

Answer 11

B6 - pyridoxine

Question 12

Which vitamin is made by good bacteria in colon?

Answer 12

B7 - biotin

Question 13

Raw eggs contain a protein called ____ which binds ____ making it unavailable

Answer 13

Avidin binds biotin

Question 14

Guinea pigs & primates are the only mammals that cannot make _____ from sugar

Answer 14

Vitamin C - ascorbic acid

Question 15

Which vitamin should be kept in the reduced state with bioflavonoids like quercitin and rutin and rose hips?

Answer 15

Vitamin C - ascorbic acid

Question 16

What is the starting enzyme of Kreb’s cycle?

Answer 16

Coenzyme A (CoASH)
| B5 pantothenic acid

Question 17

Which vitamins are involved in methylation?

Answer 17

B6, B9, B12