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Objective: Describe the Krebs cycle.

Krebs cycle: (step 2 of cellular respiration)
Where? Mitochondrial matrix
What? Metabolism of acetyl coenzyme A (acetyl CoA) yields:

CO2
2 ATP (GTP)
16 energietic electrons/H atoms (8 pairs) carried by NAD and FAD

aerobic: Requires that sufficient (atmospheric) oxygen be present at the end of the electron transport system.