VITAMINS AND COENZYMES QUIZ

The vitamin niacin is part of the __________ molecule.

NAD+

pyrophosphate

ferredoxin

pyridoxal phosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Lipoic acid is a co-factor of the

di-hydroorotate dehydrogenase

both (a) and (b)

pyruvic dehydrogenase

α-ketoglutaric dehydrogenase

TRUE ANSWER : ?
YOUR ANSWER : ?

A fat-soluble vitamin that regulates blood clotting is

vitamin C

vitamin K

niacin

vitamin A

TRUE ANSWER : ?
YOUR ANSWER : ?

An enzyme, L-folate reductase reduces folic acid to

dihydrofolic acid

tetrahydrofolic acid

hydrofolic acid

trihydrofolic acid

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 : ?

A deficiency of Vitamin K results in a decreased level of

thrombin

prothrombin

fibrinogen

fibrin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these molecules is vitamin H?

Carnitine

Folic acid

None of these

Biotin

TRUE ANSWER : ?
YOUR ANSWER : ?

Ascorbic acid acts as an

None of these

oxidizing agent

reducing agent

oxidizing and reducing agent both

TRUE ANSWER : ?
YOUR ANSWER : ?

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

both ends by two disulfide bonds

either end via a single disulfide bond

either end via two disulfide bonds

both ends by one disulfide bond

TRUE ANSWER : ?
YOUR ANSWER : ?

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

plants

plants and animals both

none of these

animal

TRUE ANSWER : ?
YOUR ANSWER : ?

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