Citric Acid Cycle Quiz
Test your knowledge of the Citric Acid Cycle (Krebs Cycle) with this comprehensive quiz.
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Which molecule enters the Citric Acid Cycle to combine with oxaloacetate and form citrate?
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Acetyl-CoA
Pyruvate
Glucose
Lactate
How many NADH molecules are produced per turn of the Citric Acid Cycle?
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1
2
3
4
Select all products generated directly by one turn of the Citric Acid Cycle.
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NADH
FADH2
ATP (or GTP)
CO2
Glucose
Fill in the blank: The enzyme that catalyzes the conversion of citrate to isocitrate is ________.
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Match the Citric Acid Cycle intermediates with the enzymes that catalyze their formation.
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Rows
Enzyme
Citrate
Aconitase
Isocitrate dehydrogenase
Succinate dehydrogenase
Citrate synthase
Isocitrate
Aconitase
Isocitrate dehydrogenase
Succinate dehydrogenase
Citrate synthase
Succinate
Aconitase
Isocitrate dehydrogenase
Succinate dehydrogenase
Citrate synthase
Malate
Aconitase
Isocitrate dehydrogenase
Succinate dehydrogenase
Citrate synthase
Rate your confidence in your knowledge of the Citric Acid Cycle.
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1
2
3
4
5
Which of the following statements about the Citric Acid Cycle is FALSE?
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It occurs in the mitochondrial matrix.
It produces ATP directly by substrate-level phosphorylation.
It does not require oxygen directly.
It converts glucose directly into CO2.
Briefly explain the significance of the Citric Acid Cycle in cellular respiration.
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How many total ATP (or GTP) equivalents are generated per turn of the Citric Acid Cycle?
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1
2
3
4
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