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41. The 3 – D’s dermatitis, diarrhoea and dementia are seen in deficiency of____________?
A. Thiamin
B. Riboflavin
C. Niacin
D. Pyridoxine

42. The function of vitamin A is/are related to which of the following ?
A. Retinol
B. Retinal
C. Retinoic acid
D. All of the above

43. Daily Vitamin A intake___________?
A. 1000 I.U
B. 2000 I.U
C. 3000 I.U
D. 4000 I.U

44. Scurvy is the result of deficiency of____________?
A. Vitamin A
B. Vitamin C
C. Vitamin B
D. Vitamin D

45. Deficiency of nicotinic acid results in____________?
A. Beri-beri
B. Pellagra
C. Night blindness
D. Pernicious anemia

46. In humans and other primates as well as in guinea pigs, this vitamin cannot be synthesized because of the absence of the enzyme L-gulonolactone oxidase: the vitamin is_____________?
A. Pantothenic acid
B. Nicotinic acid
C. Ascorbic acid
D. Folic acid

47. Vitamin D_____________?
A. Absorption requires bile pigments
B. Synthesis is regulated at the reaction catalyzed by 15-hydroxylase
C. Deficiency on adults leads to rickets
D. Along with PTH, increases calcium resorption from bone

48. Thiamine deficiency causes decreased energy production because____________?
A. It is required for the process of transmination
B. It is co-factor in oxidative reduction
C. It is co-enzyme for transketolase in pentose phosphate pathway
D. It is co-enzyme for pyruvate dehydrogenase

49. One molecule of B-carotene gives rise to______________?
A. 1 unit of Vitamin A
B. 2 unit of Vitamin A
C. 3 unit of Vitamin A
D. 4 unit of Vitamin A

50. The maximum content of vitamin E is found in____________?
A. Cold liver oil
B. Fish liver oil
C. Wheat germ oil
D. Liver