Biochemistry MCQs

Page No. 5

Two Vitamin whose derivatives are involved in transformation of serine to glycine are_____________?


a B6 ad B12

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bB12 and nicotinamie

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cFolic acid and B6

✓


dFolic acid and B12

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View Answer Folic acid and B6

Which vitamin is related to a co-factor in glycine metabolism is______________?


aVit E

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bFolic acid

✓


cThiamine

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dCobalamine

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View Answer Folic acid

Tryptophan load test helps in the evaluation of deficiency of the vitamin______________?


aFolic acid

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bNiacinamide

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cPyridoxine

✓


dCyano cobolamine

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View Answer Pyridoxine

Vitamin C is present in largest amount in the body in____________?


aEye

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bKidneys

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cTestes

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dAdrenal cortex

✓


View Answer Adrenal cortex

The following vitamin is important in non-oxidative decarboxylation, transamination and transsulfuration reactions_____________?


aRiboflavin

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bThiamine

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cPyridoxine

✓


dPantothenic acid

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View Answer Pyridoxine

Most of vitamin B12 in the body is stored as_____________?


aMethyl B12

✓


bHydroxy B12

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cCyano cobalamine

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d None of the above

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View Answer Methyl B12

Which of the following is not true of Vit D_______________?


aIts active form is calcitriol

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bIncrease calcium absorption from the intestines

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cIts deficiency results in rickets

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dIts decrease cause phosphate reabsorption from the kidneys

✓



The action of vitamin K in formation of clotting factor is through__________________?


aPost transcription

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bPost translation

✓


cGolgi complex

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dEndoplasmic reticulum

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View Answer Post translation

Tocopherol is associated with____________?


aVitamin A

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bVitamin E

✓


cVitamin K

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dVitamin D

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View Answer Vitamin E

Ascorbic acid_____________?


a Is a reducing agent

✓


bDecrease iron absorption

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c Is harmless in high doses

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dIs requirement for lysyl oxidase

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