What is the net ATP yield from glycolysis per glucose, and what is the ATP yield from fermentation when respiration cannot occur?

• A. Glycolysis nets 2 ATP per glucose; fermentation yields 2 ATP per glucose when respiration is unavailable.
• B. Glycolysis nets 4 ATP per glucose; fermentation yields 0.
• C. Glycolysis nets 2 ATP; fermentation yields 4 ATP.
• D. Glycolysis nets 6 ATP; fermentation yields 2 ATP.

Answer: (A)