VITAMINS AND COENZYMES QUIZ

A deficiency of Vitamin K results in a decreased level of

prothrombin

fibrin

thrombin

fibrinogen

TRUE ANSWER : ?
YOUR ANSWER : ?

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

both ends by one disulfide bond

either end via two disulfide bonds

both ends by two disulfide bonds

either end via a single disulfide bond

TRUE ANSWER : ?
YOUR ANSWER : ?

The vitamin niacin is part of the __________ molecule.

NAD+

ferredoxin

pyridoxal phosphate

pyrophosphate

TRUE ANSWER : ?
YOUR ANSWER : ?

Selenium is an essential component of the enzyme glutathione peroxidase which

oxidizes toxic hydoperoxycompounds in tissues

reduces toxic hydoperoxycompounds in tissues

None of these

scavenges toxic hydoperoxycompounds in tissues

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of these is a vitamin A precursor?

Thiamine

Beta-Carotene

Cobalamin

Pyridoxine

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.

5-6 dimethylbenzimidazole

adenine

hydroxycobalamin

cyanocobalamin

TRUE ANSWER : ?
YOUR ANSWER : ?

The most prominent role that tocopherol has in in-vitro systems is as a strong

reducing agent

all of these

oxidizing agent

antioxidants

TRUE ANSWER : ?
YOUR ANSWER : ?

Main function of insulin hormone is to

increase glycogen in liver

increase blood sugar

decrease glycogen in liver

decrease blood sugar

TRUE ANSWER : ?
YOUR ANSWER : ?

Ascorbic acid acts as an

reducing agent

oxidizing and reducing agent both

None of these

oxidizing agent

TRUE ANSWER : ?
YOUR ANSWER : ?

An example of a digestive hormone is

pepsin

gastrin

amylase

lipase

TRUE ANSWER : ?
YOUR ANSWER : ?

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