Vitamins And Coenzymes

Question: A fat-soluble vitamin that regulates blood clotting is
[A].

vitamin A

[B].

vitamin K

[C].

vitamin C

[D].

niacin

Answer: Option B

Explanation:

No answer description available for this question.

Question: Models of end-linked Osaka VI Fibrinogen dimers, a bilayer dimer is linked at
[A].

both ends by one disulfide bond

[B].

either end via two disulfide bonds

[C].

either end via a single disulfide bond

[D].

both ends by two disulfide bonds

Answer: Option D

Explanation:

No answer description available for this question.

Question: A deficiency of Vitamin K results in a decreased level of
[A].

prothrombin

[B].

thrombin

[C].

fibrin

[D].

fibrinogen

Answer: Option A

Explanation:

No answer description available for this question.

Question: An early sign of retinol deficiencies in man is
[A].

night blindness

[B].

keratinization

[C].

xeropthalmia

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: β-carotene together with α-carotene, γ-carotene and cryptoxanthine are synthesized by
[A].

plants

[B].

animal

[C].

plants and animals both

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: Ascorbic acid acts as an
[A].

reducing agent

[B].

oxidizing agent

[C].

oxidizing and reducing agent both

[D].

none of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: Who discovered vitamin C (ascorbic acid)?
[A].

Paul Berg

[B].

Linus Pauling

[C].

Albert Szent-Gyorgyi

[D].

Kerry Mull is

Answer: Option C

Explanation:

No answer description available for this question.

Question: E.coli ACP has its molecular weight as around
[A].

9000

[B].

19000

[C].

39000

[D].

90,000

Answer: Option A

Explanation:

No answer description available for this question.

Question: Acyl carrier protein (ACP) plays an important role in the biosynthesis of
[A].

fatty acids

[B].

amino acids

[C].

sugars

[D].

carbohydrates

Answer: Option A

Explanation:

No answer description available for this question.

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

adenine

[B].

5-6 dimethylbenzimidazole

[C].

hydroxycobalamin

[D].

cyanocobalamin

Answer: Option A

Explanation:

No answer description available for this question.