Vitamins And Coenzymes

Question: An enzyme, L-folate reductase reduces folic acid to
[A].

hydrofolic acid

[B].

dihydrofolic acid

[C].

trihydrofolic acid

[D].

tetrahydrofolic acid

Answer: Option B

Explanation:

No answer description available for this question.

Question: A deficiency of thiamin produces the disease known as
[A].

beri-beri

[B].

scurvy

[C].

cataract

[D].

anemia

Answer: Option A

Explanation:

No answer description available for this question.

Question: Biotin occurs mainly in combined forms bound to protein through
[A].

ε-N-lysine moiety

[B].

ε-S-lysine moiety

[C].

ε-N-biotinyl-L-lysine

[D].

ε-N-lipoyl – L-lysine

Answer: Option A

Explanation:

No answer description available for this question.

Question: Lipoic acid is a co-factor of the
[A].

pyruvic dehydrogenase

[B].

α-ketoglutaric dehydrogenase

[C].

both (a) and (b)

[D].

di-hydroorotate dehydrogenase

Answer: Option C

Explanation:

No answer description available for this question.

Question: Lipoic acid exists in
[A].

oxidized form

[B].

reduced form

[C].

oxidized and reduced form both

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.

Question: Dihydroorotate dehydrogenase contains
[A].

4 flavins and 4 atoms of iron per molecule

[B].

2 flavins and 4 atoms of iron per molecule

[C].

2 flavins and 2 atoms of iron per molecule

[D].

4 flavins and 2 atoms of iron per molecule

Answer: Option A

Explanation:

No answer description available for this question.

Question: In one iron-metalloflavoprotein, the iron is present as a
[A].

heme-protein

[B].

nonheme type

[C].

both (a) and (b)

[D].

flavin moiety

Answer: Option A

Explanation:

No answer description available for this question.

Question: An example of a digestive hormone is
[A].

lipase

[B].

pepsin

[C].

amylase

[D].

gastrin

Answer: Option D

Explanation:

No answer description available for this question.

Question: Main function of insulin hormone is to
[A].

increase glycogen in liver

[B].

decrease glycogen in liver

[C].

increase blood sugar

[D].

decrease blood sugar

Answer: Option D

Explanation:

No answer description available for this question.

Question: A deficiency of niacin causes
[A].

pellagra

[B].

scurvy

[C].

cataract

[D].

anemia

Answer: Option A

Explanation:

No answer description available for this question.