VITAMINS AND COENZYMES QUIZ

Ascorbic acid acts as an

None of these

oxidizing and reducing agent both

oxidizing agent

reducing agent

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these hormones is a catecholamine?

Norepinephrine

Tetraiodothyronine

Tetrahydrofolate

Follitropin

TRUE ANSWER : ?
YOUR ANSWER : ?

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

stabilize the semiquinone

de-stabilize the semiquinone

form chelation

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Lipoic acid exists in

oxidized form

oxidized and reduced form both

none of these

reduced form

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these is a vitamin A precursor?

Thiamine

Cobalamin

Beta-Carotene

Pyridoxine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

cataract

rickets

beri-beri

pernicious anemia

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamins are essential because the organism

can't synthesize these compounds in the adequate amounts

None of these

can synthesize these compounds partially

can't synthesize these compounds at all

TRUE ANSWER : ?
YOUR ANSWER : ?

An example of a digestive hormone is

gastrin

lipase

pepsin

amylase

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamin-D deficiency can cause

cataract

beri-beri

pernicious anemia

rickets

TRUE ANSWER : ?
YOUR ANSWER : ?

Acyl carrier protein (ACP) plays an important role in the biosynthesis of

amino acids

fatty acids

sugars

carbohydrates

TRUE ANSWER : ?
YOUR ANSWER : ?

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