VITAMINS AND COENZYMES QUIZ

Dihydroorotate dehydrogenase contains

4 flavins and 4 atoms of iron per molecule

2 flavins and 4 atoms of iron per molecule

2 flavins and 2 atoms of iron per molecule

4 flavins and 2 atoms of iron per molecule

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these hormones is a catecholamine?

Follitropin

Norepinephrine

Tetraiodothyronine

Tetrahydrofolate

TRUE ANSWER : ?
YOUR ANSWER : ?

Lipoic acid exists in

reduced form

oxidized and reduced form both

none of these

oxidized form

TRUE ANSWER : ?
YOUR ANSWER : ?

The vitamin niacin is part of the __________ molecule.

pyridoxal phosphate

NAD+

pyrophosphate

ferredoxin

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamin K1 was first isolated from alfalalfa and has the phytyl side chain consisting of

six isoprene units

nine isoprene units

four isoprene units

four isoprene units

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamin-C is considered as a

water soluble

fat and water soluble

none of these

fat soluble

TRUE ANSWER : ?
YOUR ANSWER : ?

Main function of insulin hormone is to

decrease glycogen in liver

increase blood sugar

increase glycogen in liver

decrease blood sugar

TRUE ANSWER : ?
YOUR ANSWER : ?

A fat-soluble vitamin that regulates blood clotting is

vitamin A

vitamin C

niacin

vitamin K

TRUE ANSWER : ?
YOUR ANSWER : ?

Vitamins are essential because the organism

can't synthesize these compounds in the adequate amounts

None of these

can't synthesize these compounds at all

can synthesize these compounds partially

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of niacin causes

pellagra

cataract

scurvy

anemia

TRUE ANSWER : ?
YOUR ANSWER : ?

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