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21. Which vitamin is the most indispensable during mitosis______________?
A. Folic acid
B. Pantothenic acid
C. Ascorbic acid
D. Aspartic acid

22. Malonyl aciduria is seen in deficiency of_____________?
A. Pyridoxine
B. B12
C. Folic acid
D. Riboflavin

23. Biological activity of tocopherols has been attributed, in part to their actions as_____________?
A. Antioxidant
B. Anticoagulants
C. Provitamin
D. Antidotes for selenium poisoning

24. Which vitamin is synthesized by intestinal bacteria ?
A. Vit B
B. Vit A
C. Vit D
D. Vit K

25. Of prime importance in the structure of flavoproteins is____________?
A. Vit B6
B. Vit B2
C. Vit B1
D. Vit A

26. Vitamin also acting as hormones________________?
A. Vitamin D
B. Vitamin A
C. Vitamin B1
D. Vitamin C

27. Deficiency of which vitamin causes glossitis dementia roughed keratotic areas on skin and gastrointestinal symptoms ?
A. Riboflavin
B. Pyridoxine
C. Niacin
D. Pantothenic acid

28. Rhodopsin deficiency is chiefly associated with________________?
A. Vitamin D deficiency
B. Rickets
C. Vitamin A deficiency
D. Scurvy

29. Vitamin K____________?
A. Helps in formation of prothrombin
B. Inhibition of antithrombin
C. Prevention of capillary fragility
D. Stimulation of hematopoiesis in red bone marrow

30. Vitamin K antagonizes_____________?
A. Corticosteroids
B. Thrombin formation
C. Bishydroxy coumarin
D. Production of clotting factors by liver