VITAMINS AND COENZYMES QUIZ

A deficiency of thiamin produces the disease known as

anemia

beri-beri

cataract

scurvy

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these hormones is a catecholamine?

Tetrahydrofolate

Tetraiodothyronine

Follitropin

Norepinephrine

TRUE ANSWER : ?
YOUR ANSWER : ?

Dihydroorotate dehydrogenase contains

4 flavins and 2 atoms of iron per molecule

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

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 : ?

An example of a digestive hormone is

amylase

gastrin

lipase

pepsin

TRUE ANSWER : ?
YOUR ANSWER : ?

In the co-enzyme B12the position occupied by a cyanide ion in vitamin B12 is bonded directly to the __________ of the ribose of adenosine.

adenine

5-6 dimethylbenzimidazole

cyanocobalamin

hydroxycobalamin

TRUE ANSWER : ?
YOUR ANSWER : ?

A deficiency of niacin causes

anemia

pellagra

scurvy

cataract

TRUE ANSWER : ?
YOUR ANSWER : ?

E.coli ACP has its molecular weight as around

39000

19000

9000

90,000

TRUE ANSWER : ?
YOUR ANSWER : ?

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

stabilize the semiquinone

form chelation

de-stabilize the semiquinone

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

plants and animals both

plants

animal

none of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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