Biochemistry

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.

Question: During catabolism, only about 40% of the energy available from oxidizing glucose is used to synthesize ATP. Remaining 60%
[A].

is lost as heat

[B].

is used to reduce NADP

[C].

remains in the products of metabolism

[D].

is stored as fat.

Answer: Option A

Explanation:

No answer description available for this question.

Question: The amount of energy received from one ATP is
[A].

76 kcal

[B].

7.3 kcal

[C].

760 kcal

[D].

1000 kcal

Answer: Option B

Explanation:

No answer description available for this question.

Question: ATP is from which general category of molecules?
[A].

Polysaccharides

[B].

Proteins

[C].

Nucleotides

[D].

Amino acids

Answer: Option C

Explanation:

No answer description available for this question.

Question: In glycolysis, ATP is formed by the transfer of a high-energy phosphate from 1,3-bisphosphoglycerate to ADR No such high-energy phosphate donor has ever been isolated in mitochondria because
[A].

the techniques for isolating the phosphate donor are not refined enough

[B].

no such phosphate donor exists

[C].

the high-energy phosphate donor is very short-lived and difficult to isolate

[D].

None of the above

Answer: Option B

Explanation:

No answer description available for this question.