VITAMINS AND COENZYMES QUIZ

Vitamin-D deficiency can cause

beri-beri

rickets

pernicious anemia

cataract

TRUE ANSWER : ?
YOUR ANSWER : ?

Ascorbic acid acts as an

reducing agent

oxidizing and reducing agent both

oxidizing agent

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of Vitamin K results in a decreased level of

fibrinogen

prothrombin

fibrin

thrombin

TRUE ANSWER : ?
YOUR ANSWER : ?

Biotin occurs mainly in combined forms bound to protein through

ε-S-lysine moiety

ε-N-lysine moiety

ε-N-lipoyl - L-lysine

ε-N-biotinyl-L-lysine

TRUE ANSWER : ?
YOUR ANSWER : ?

The symptoms of retinol excess are

weakness

nausea

bone fragility

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamin B12 (Cobalamin) is only synthesized by

animals

micro-organisms

plants

fishes

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Albumin

Avidin

Betabindin

Ovalbumin

TRUE ANSWER : ?
YOUR ANSWER : ?

The most prominent role that tocopherol has in in-vitro systems is as a strong

antioxidants

oxidizing agent

all of these

reducing agent

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamins are essential because the organism

can synthesize these compounds partially

None of these

can't synthesize these compounds at all

can't synthesize these compounds in the adequate amounts

TRUE ANSWER : ?
YOUR ANSWER : ?

What metal ion is specifically bound by vitamin B12?

Zinc

Cobalt

Copper

Iron

TRUE ANSWER : ?
YOUR ANSWER : ?

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