Oxidation of Pyruvate and the Citric Acid Cycle

Review Questions

What is removed from pyruvate during its conversion into an acetyl group?

  1. oxygen
  2. ATP
  3. B vitamin
  4. carbon dioxide

Hint:

D

What do the electrons added to NAD+ do?

  1. They become part of a fermentation pathway.
  2. They go to another pathway for ATP production.
  3. They energize the entry of the acetyl group into the citric acid cycle.
  4. They are converted to NADP.

Hint:

B

GTP or ATP is produced during the conversion of ________.

  1. isocitrate into α-ketoglutarate
  2. succinyl CoA into succinate
  3. fumarate into malate
  4. malate into oxaloacetate

Hint:

B

How many NADH molecules are produced on each turn of the citric acid cycle?

  1. one
  2. two
  3. three
  4. four

Hint:

C