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Vitamins and Coenzymes

Vitamins and Coenzymes
Ascorbic acid acts as an

reducing agent
None of these
oxidizing agent
oxidizing and reducing agent both

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Vitamins and Coenzymes
The vitamin niacin is part of the __________ molecule.

pyridoxal phosphate
pyrophosphate
NAD+
ferredoxin

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Vitamins and Coenzymes
The disease Beriberi is due to a dietary deficiency in

vitamin B2 (riboflavin)
vitamin B12
vitamin B6 (pyridoxine)
vitamin B1 (thiamine)

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Vitamins and Coenzymes
Which of these hormones is a catecholamine?

Follitropin
Norepinephrine
Tetrahydrofolate
Tetraiodothyronine

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Vitamins and Coenzymes
β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by

none of these
plants
plants and animals both
animal

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Vitamins and Coenzymes
A deficiency of thiamin produces the disease known as

beri-beri
cataract
scurvy
anemia

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