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Vitamins and Coenzymes

Vitamins and Coenzymes
Which of these is a vitamin A precursor?

Thiamine
Pyridoxine
Beta-Carotene
Cobalamin

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Vitamins and Coenzymes
E.coli ACP has its molecular weight as around

39000
19000
9000
90,000

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Vitamins and Coenzymes
Lipoic acid is a co-factor of the

pyruvic dehydrogenase
α-ketoglutaric dehydrogenase
di-hydroorotate dehydrogenase
both (a) and (b)

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Vitamins and Coenzymes
Which of these is a symptom of vitamin A deficiency?

Impaired blood clotting
Osteoporosis
Blindness
Impaired taste perception

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Vitamins and Coenzymes
Vitamins are essential because the organism

can't synthesize these compounds at all
can synthesize these compounds partially
can't synthesize these compounds in the adequate amounts
None of these

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Vitamins and Coenzymes
Biotin occurs mainly in combined forms bound to protein through

ε-N-lipoyl - L-lysine
ε-S-lysine moiety
ε-N-lysine moiety
ε-N-biotinyl-L-lysine

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