Q. In the co-enzyme B₁₂ the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

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Q. The reductant, NADH, transfers the electrons via a flavo-proteins to the specific disulfide (S-S) protein to form a dithiol (SH,SH) protein which converts vitamin

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Q. The symptoms of retinol excess are

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Q. Main function of insulin hormone is to

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Q. Ascorbic acid acts as an

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Q. A deficiency of thiamin produces the disease known as

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Q. Acyl carrier protein (ACP) plays an important role in the biosynthesis of

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Q. The vitamin riboflavin is part of the __________ molecule.

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Q. The most prominent role that tocopherol has in in-vitro systems is as a strong

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Q. Biotin occurs mainly in combined forms bound to protein through

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Q. Lipoic acid is a co-factor of the

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Q. β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

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Q. Vitamin-D deficiency can cause

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Q. A deficiency of Vitamin K results in a decreased level of

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Q. The vitamin riboflavin, which occurs as a yellow pigment in egg yolk and milk become

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Q. Which of the following compounds/(s) belong/(s) to the vitamin B6 group?

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Q. What metal ion is specifically bound by vitamin B12?

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Q. Vitamin B12 (Cobalamin) is only synthesized by

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Q. Which of the following are reduced coenzymes?

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Q. The absence of ascorbic acid in the human diet gives rise to

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