2.29&2.30 Lesson: Fermentation, Anaerobic, Aerobic Respiration

By R. Marsh Ph.D.

Use this image to answer the fallowing questions.​

​•  In the Krebs cycle, the oxidation of acetyl groups is coupled to the reduction of hydrogen carriers, liberating carbon dioxide

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The second stage of aerobic respiration is the Krebs cycle, which occurs within the matrix of the mitochondria​

Krebs Cycle

​The Krebs cycle is also commonly referred to as the citric acid cycle.​

​In the presence of oxygen, 3C

Pyruvate is converted (OXIDIZED) into Acetyl CoA in an intermediate process just before the Citric Acid Cycle.

Next acetyl CoA 2C acetyl group joins the 4C four-carbon molecule to form (citrate), a 6C six-carbon molecule,)

Krebs Cycle