Understanding the Krebs Cycle

Practice Questions

GRE Subject Test: Biology › Understanding the Krebs Cycle

Questions
9
1

What molecule joins with acetyl CoA in order to produce citrate?

2

Which of the following are high energy intermediates produced during the citric acid cycle?

I.

II.

III.

IV.

3

The hydrolysis of ATP to ADP and an inorganic phosphate is a(n) __________ reaction.

I. exergonic

II. endergonic

III. spontaneous

IV. nonspontaneous

4

Which molecule reacts with oxaloacetate (four-carbons) to form citrate (six-carbons) in the beginning of the citric acid cycle?

5

Which high energy intermediate is produced when pyruvate and coenzyme A react to form acetyl-CoA and carbon dioxide?

6

__________ is the loss of electrons caused by __________ agents.

7

Glucose is not the only molecule from which ATP can be derived. Which molecule type produces the most amount of ATP per gram?

8

Which of the following products is produced in the highest quantity during the Krebs cycle?

9

What are the net products of the Krebs cycle from one glucose molecule?

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