VITAMINS AND COENZYMES QUIZ

Which of these is a symptom of vitamin A deficiency?

Osteoporosis

Impaired blood clotting

Impaired taste perception

Blindness

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YOUR ANSWER : ?

Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at

either end via a single disulfide bond

both ends by one disulfide bond

both ends by two disulfide bonds

either end via two disulfide bonds

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YOUR ANSWER : ?

Which of the following are reduced coenzymes?

ATP and GTP

Coenzyme A and ubiquinone

NADH and FADH2

NAD+ and FAD

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

more deep in color on oxidation and regained its color on reduction with Zn in acid

colorless on oxidation and regained its color on reduction with Zn in acid

more deep in color on reduction with Zn in acid and regained its color on re-oxidation

colorless on reduction with Zn in acid and regained its color on re-oxidation

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YOUR ANSWER : ?

Vitamin-C is considered as a

none of these

fat soluble

water soluble

fat and water soluble

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YOUR ANSWER : ?

A deficiency of thiamin produces the disease known as

beri-beri

scurvy

anemia

cataract

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YOUR ANSWER : ?

In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

5-6 dimethylbenzimidazole

cyanocobalamin

adenine

hydroxycobalamin

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An example of a digestive hormone is

amylase

pepsin

gastrin

lipase

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

none of these

plants and animals both

plants

animal

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Dihydroorotate dehydrogenase contains

4 flavins and 2 atoms of iron per molecule

2 flavins and 2 atoms of iron per molecule

4 flavins and 4 atoms of iron per molecule

2 flavins and 4 atoms of iron per molecule

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