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Vitamins and Coenzymes

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
The disease Beriberi is due to a dietary deficiency in

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

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Vitamins and Coenzymes
What metal ion is specifically bound by vitamin B12?

Zinc
Iron
Cobalt
Copper

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

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

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Vitamins and Coenzymes
The absence of ascorbic acid in the human diet gives rise to

beri-beri
rickets
pernicious anemia
cataract

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

cataract
beri-beri
scurvy
anemia

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