Vit B12 is absorbed in the_____________?
(A) Stomach
(B) Terminal ileum
(C) Lower jejunum
(D) Proximal ileum
Deficiency of vitamin C causes the following except____________?
(A) Painful swollen gums
(B) Abnormal Collagen
(C) Anaemia
(D) Diarrhoea
Vitamin B12 acts as a coenzyme to which one of the following enzyme ?
(A) Isocitrate dehydrogenase
(B) Homocyteine methyl transferase
(C) Glycogen synthase
(D) G-6-P dehydrogenase
Vitamin A_____________?
(A) Is water soluble
(B) Deficiency causes impaired vision
(C) Maintains normal plasma calcium levels
(D) Is required for formation of clotting factors
The maximum content of vitamin E is found in____________?
(A) Cold liver oil
(B) Fish liver oil
(C) Wheat germ oil
(D) Liver
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
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
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
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
Deficiency of nicotinic acid results in____________?
(A) Beri-beri
(B) Pellagra
(C) Night blindness
(D) Pernicious anemia