Biology Study Guides - SparkNotes
Cellular Respiration

I. Reaction: C6H12O6 + 6O2 + 6H2O ——> 6CO2 + 12 H2O + energy (38 ATP and heat)

II. Aerobic Cellular Respiration occurs in three stages.
A. Glycolysis (occurs in the cytoplasm)
1. One glucose is split into two pyruvates (C3H4O3). 2. 4 ATP are produced, but 2 endergonic reactions use up 2 ATP. 3. Glycolysis requires no oxygen, and occurs whether oxygen is present or not. 4. Glycolysis occurs in all living cells.

5. Fermentation follows glycolysis in anaerobic conditions. a. Fermentation is not part of aerobic cellular respiration. b. Fermentation occurs in the cytopl...

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