VITAMINS

Question 1

An important anti oxidant because it inhibits the formation of nitrosamines during digestion

a. retinol
b. ascorbic acid
c. tocopherol
d. retinoic acid
e. cobalamin

Answer 1

b. ascorbic acid

Question 2

Deficiency of this may lead to anemia in the prematures due to red blood cell hemolysis

a. Vit A
b. Vit D
c. Vit E
d. Vit C
e. Vit K

Answer 2

c. Vit E

Question 3

A cofactor of an important enzyme of the pentose phosphate pathway, transketolase

a. Thiamine
b. Biotin
c. Niacin
d. Riboflavin
e. Pantothenic acid

Answer 3

a. Thiamine

Question 4

Functions as a cofactor to a carboxylase that acts on glutamate residues of clotting factor precursor proteins

a. Vitamin A
b. Vitamin C
c. Vitamiin E
d. Vitamin K
e. Biotin

Answer 4

d. Vitamin K

Question 5

A polyisoprenoid compound containing a cyclohexenyl ring

a. Folic acid
b. Pyridoxine
c. Ascorbic acid
d. Retinol
e. Biotin

Answer 5

d. Retinol

Question 6

The earliest clinical symptom of Vitamin A deficiency

a. defective night vision
b. xerophtalmia
c. presence of Bitots spots
d. Keratomalacia
e. Xerosis conjunctivae

Answer 6

a. defective night vision

Question 7

This vitamin is important in the regulation of calcium and phosphate
metabolism
a. Vitamin A
b. Vitamin E
c. Thiamin
d. Folic acid
e. Vitamin D

Answer 7

e. Vitamin D

Question 8

If a patient exhibits low activity of propionyl CoA carboxylase, therapeutic
doses of which of the following might be beneficial?
a. carnitine
b. pantothenic acid
c. biotin
d. riboflavin
e. niacin

Answer 8

c. biotin

Question 9

Strict vegetarians are susceptible to this kind of vitamin deficiency

a. pantothenic acid
b. cobalamin
c. folacin
d. niacin
e. pyridoxine

Answer 9

b. cobalamin

Question 10

Of the following, which is the most potent form of vitamin D?

a. ergosterol
b. cholecalciferol
c. 7-dehydrocholesterol
d. 25-hydroxycholecalciferol
e. 1,25-dihydroxycholecalciferol

Answer 10

e. 1,25-dihydroxycholecalciferol