Glycolysis

Question: Fructose-2,6-bisphosphate
[A].

activates fructose-1,6-bisphosphatase

[B].

activates phosphofructokinase

[C].

inhibits fructose-1,6-bisphosphatase

[D].

both (b) and (c)

Answer: Option D

Explanation:

No answer description available for this question.

Question: In the glycogen synthase reaction, the precursor to glycogen is
[A].

glucose-6-P

[B].

UTP-glucose

[C].

UDP-glucose

[D].

glucose-1-P

Answer: Option C

Explanation:

No answer description available for this question.

Question: Glucose from the breakdown of glycogen is obtained in
[A].

the liver by phosphorolysis

[B].

the muscles by phosphorolysis

[C].

the muscles by hydrolysis

[D].

both (a) and (b)

Answer: Option D

Explanation:

No answer description available for this question.

Question: Glycogen has
[A].

α-1,4 linkage

[B].

α-1,6 linkages

[C].

α-1,4 and α-1,6 linkages

[D].

α-1,4 and β-1,6 linkage

Answer: Option C

Explanation:

No answer description available for this question.

Question: During glycolysis, the major energy generating step involves
[A].

pyruvate kinase

[B].

phosphoglycerate kinase

[C].

glyceraldehyde-3 -dehydrogenase

[D].

Phosphofructokinase

Answer: Option C

Explanation:

No answer description available for this question.

Question: Which of the following regulates glycolysis steps?
[A].

Phosphofructokinase

[B].

Hexose kinase

[C].

Pyruvate kinase

[D].

All of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Glycolytic pathway regulation involves
[A].

allosteric stimulation by ADP

[B].

allosteric inhibition by ATP

[C].

feedback, or product, inhibition by ATP

[D].

all of the above

Answer: Option D

Explanation:

No answer description available for this question.

Question: A kinase is an enzyme that
[A].

removes phosphate groups of substrates

[B].

uses ATP to add a phosphate group to the substrate

[C].

uses NADH to change the oxidation state of the substrate

[D].

removes water from a double bond

Answer: Option B

Explanation:

No answer description available for this question.

Question: For every one molecule of sugar glucose which is oxidized __________ molecule of pyruvic acid are produced.
[A].

1

[B].

2

[C].

3

[D].

4

Answer: Option B

Explanation:

No answer description available for this question.

Question: Why does the glycolytic pathway continue in the direction of glucose catabolism?
[A].

There are essentially three irreversible reactions that act as the driving force for the pathway

[B].

High levels of ATP keep the pathway going in a forward direction

[C].

The enzymes of glycolysis only function in one direction

[D].

Glycolysis occurs in either direction

Answer: Option A

Explanation:

No answer description available for this question.