Question

1. which stage produces the most atp?

Explanation:

Cellular respiration has three main stages: glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation (electron - transport chain). Glycolysis produces a small amount of ATP (net 2 ATP per glucose molecule). The citric acid cycle also produces a limited amount (2 ATP per glucose molecule). Oxidative phosphorylation, which occurs in the electron - transport chain, uses the energy from electron transfer to pump protons and generate a proton - motive force. This proton - motive force is used by ATP synthase to produce a large amount of ATP. For each glucose molecule, oxidative phosphorylation can produce about 28 - 32 ATP molecules.

Answer:

Oxidative phosphorylation (electron - transport chain)