Krebs (Citric Acid) Cycle
Source: The Krebs Cycle · Cell Biology
Location
Cell Biology- Mitochondrial matrix in eukaryotes
- Cytoplasm in prokaryotes
Net yield
Cell Biology- NADH: 3
- FADH2: 1
- GTP / ATP: 1
- CO2: 2
Key enzymes
Cell Biology- Citrate synthase: Acetyl-CoA + OAA → citrate
- Isocitrate dehydrogenase: rate-limiting step
- α-KG dehydrogenase: NADH + CO2 release
Flashcards
Cell Biology- Q: How many ATP are produced per glucose via TCA alone? A: 2, because the cycle runs twice.

