Biochemistry MCQs

Page No. 4

Vit B12 is absorbed in the_____________?


aStomach


bTerminal ileum


cLower jejunum


dProximal ileum


View Answer Terminal ileum

Deficiency of vitamin C causes the following except____________?


aPainful swollen gums


bAbnormal Collagen


cAnaemia


dDiarrhoea


View Answer Diarrhoea

Vitamin B12 acts as a coenzyme to which one of the following enzyme ?


aIsocitrate dehydrogenase


bHomocyteine methyl transferase


cGlycogen synthase


dG-6-P dehydrogenase



Vitamin A_____________?


aIs water soluble


bDeficiency causes impaired vision


cMaintains normal plasma calcium levels


dIs required for formation of clotting factors



The maximum content of vitamin E is found in____________?


aCold liver oil


bFish liver oil


cWheat germ oil


dLiver


View Answer Wheat germ oil

One molecule of B-carotene gives rise to______________?


a1 unit of Vitamin A


b2 unit of Vitamin A


c3 unit of Vitamin A


d4 unit of Vitamin A


View Answer 2 unit of Vitamin A

Thiamine deficiency causes decreased energy production because____________?


aIt is required for the process of transmination


bIt is co-factor in oxidative reduction


cIt is co-enzyme for transketolase in pentose phosphate pathway


dIt is co-enzyme for pyruvate dehydrogenase



Vitamin D_____________?


aAbsorption requires bile pigments


bSynthesis is regulated at the reaction catalyzed by 15-hydroxylase


cDeficiency on adults leads to rickets


dAlong with PTH, increases calcium resorption from bone



1st clinical sign of vitamin A deficiency is_____________?


anight blindness


bbitot’s spots


cxerostomia


dconjunctival xeroses


View Answer conjunctival xeroses

The mineral having sparing action on Vitamin E_______________?


aChromium


bIron


cIodine


dSelenium


View Answer Selenium

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