VITAMINS AND COENZYMES QUIZ

Which of these is a symptom of vitamin A deficiency?

Osteoporosis

Impaired blood clotting

Blindness

Impaired taste perception

TRUE ANSWER : ?
YOUR ANSWER : ?

An early sign of retinol deficiencies in man is

none of these

xeropthalmia

night blindness

keratinization

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of niacin causes

cataract

anemia

scurvy

pellagra

TRUE ANSWER : ?
YOUR ANSWER : ?

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

beri-beri

rickets

cataract

pernicious anemia

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these hormones is a catecholamine?

Follitropin

Norepinephrine

Tetrahydrofolate

Tetraiodothyronine

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of Vitamin K results in a decreased level of

thrombin

fibrinogen

fibrin

prothrombin

TRUE ANSWER : ?
YOUR ANSWER : ?

Biotin occurs mainly in combined forms bound to protein through

ε-N-biotinyl-L-lysine

ε-S-lysine moiety

ε-N-lysine moiety

ε-N-lipoyl - L-lysine

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 : ?

Selenium is an essential component of the enzyme glutathione peroxidase which

scavenges toxic hydoperoxycompounds in tissues

reduces toxic hydoperoxycompounds in tissues

None of these

oxidizes toxic hydoperoxycompounds in tissues

TRUE ANSWER : ?
YOUR ANSWER : ?

A fat-soluble vitamin that regulates blood clotting is

vitamin C

vitamin K

vitamin A

niacin

TRUE ANSWER : ?
YOUR ANSWER : ?

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