Question

question 33
in which stage of aerobic respiration is water produced?
a the electron transport system
b glycolysis
c the krebs cycle

Explanation:

• Glycolysis: Glucose is broken down into pyruvate. No water is produced here.
• Krebs cycle: Acetyl - CoA is oxidized. Carbon dioxide is produced, not water.
• Electron transport system: Electrons are passed through a series of carriers. Oxygen acts as the final electron acceptor. \(O_{2}+4e^{-}+4H^{+}\to 2H_{2}O\), so water is produced in the electron transport system.

Answer:

A. The electron transport system