VITAMINS AND COENZYMES QUIZ

Which of the following are reduced coenzymes?

NADH and FADH2

NAD+ and FAD

Coenzyme A and ubiquinone

ATP and GTP

TRUE ANSWER : ?
YOUR ANSWER : ?

An example of a digestive hormone is

amylase

lipase

pepsin

gastrin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these is a vitamin A precursor?

Cobalamin

Beta-Carotene

Pyridoxine

Thiamine

TRUE ANSWER : ?
YOUR ANSWER : ?

Biotin occurs mainly in combined forms bound to protein through

ε-N-lysine moiety

ε-S-lysine moiety

ε-N-biotinyl-L-lysine

ε-N-lipoyl - L-lysine

TRUE ANSWER : ?
YOUR ANSWER : ?

An early sign of retinol deficiencies in man is

keratinization

none of these

xeropthalmia

night blindness

TRUE ANSWER : ?
YOUR ANSWER : ?

E.coli ACP has its molecular weight as around

19000

39000

9000

90,000

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of niacin causes

cataract

anemia

scurvy

pellagra

TRUE ANSWER : ?
YOUR ANSWER : ?

Dihydroorotate dehydrogenase contains

2 flavins and 4 atoms of iron per molecule

4 flavins and 2 atoms of iron per molecule

4 flavins and 4 atoms of iron per molecule

2 flavins and 2 atoms of iron per molecule

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Betabindin

Avidin

Albumin

Ovalbumin

TRUE ANSWER : ?
YOUR ANSWER : ?

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

nine isoprene units

four isoprene units

six isoprene units

four isoprene units

TRUE ANSWER : ?
YOUR ANSWER : ?

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