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Vitamins and Coenzymes

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

Impaired blood clotting
Impaired taste perception
Blindness
Osteoporosis

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Vitamins and Coenzymes
What compound of raw egg white causes a syndrome similar to vitamin B deficiency?

Betabindin
Albumin
Ovalbumin
Avidin

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Vitamins and Coenzymes
The occurrence of metals such as iron or molybdenum in some flavoproteins can

stabilize the semiquinone
form chelation
all of these
de-stabilize the semiquinone

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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 disease Beriberi is due to a dietary deficiency in

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

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Vitamins and Coenzymes
A deficiency of Vitamin K results in a decreased level of

fibrinogen
fibrin
thrombin
prothrombin

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