Biochemistry

Question: The conversion of pyruvate to oxaloacetate
[A].

requires biotin

[B].

involves the fixation of carbon dioxide

[C].

occurs in the mitochondria

[D].

all of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: Pyruvate is initially converted to which of the following in the gluconeogenesis?
[A].

Glycerol

[B].

Phosphoenol pyruvate

[C].

Oxaloacetate

[D].

Acetyl CoA

Answer: Option C

Explanation:

No answer description available for this question.

Question: The cells dependent solely on glucose as an energy source are
[A].

muscle cells

[B].

brain cells

[C].

kidney cells

[D].

liver cells

Answer: Option B

Explanation:

No answer description available for this question.

Question: The function of gluconeogenesis is
[A].

maintenance of blood glucose levels during starvation or a low carbohydrate diet

[B].

recovery of lactate from fermentation and glycerol from fat breakdown

[C].

a pathway for the utilization of amino acids

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: Which of the following can act as precursors for gluconeogenesis?
[A].

Lactate

[B].

Glycerol

[C].

Alanine

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Gluconeogenesis requires a higher amount of ATP equivalents as compared to that produced by glycolysis because
[A].

gluconeogenesis releases energy as heat

[B].

glycolysis releases energy as heat

[C].

glycolysis occurs in the mitochondria while gluconeogenesis occurs in the cytosol

[D].

all of the above

Answer: Option B

Explanation:

No answer description available for this question.

Question: How many ATP equivalents per mole of glucose input are required for gluconeogenesis?
[A].

2

[B].

6

[C].

8

[D].

4

Answer: Option B

Explanation:

No answer description available for this question.

Question: Fructose diphosphate accumulation would
[A].

inhibit glycolysis and gluconeogenesis

[B].

stimulate glycolysis and gluconeogenesis

[C].

stimulate glycolysis and inhibit gluconeogenesis

[D].

inhibit glycolysis and stimulate gluconeogenesis

Answer: Option C

Explanation:

No answer description available for this question.

Question: Citric acid accumulation would
[A].

stimulate phosphofructokinase activity

[B].

stimulate fructose 1,6 diphosphatase activity

[C].

inhibit phosphofructokinase activity

[D].

both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: An intermediate which inhibits the activity of fructose 1,6 diphos-phatase would inhibit
[A].

glycolysis

[B].

pyrolysis

[C].

gluconeogenesis

[D].

none of these

Answer: Option C

Explanation:

No answer description available for this question.