Question

ATP molecules, which are used for energy by cells, are built during all three stages of cellular respiration.Which stage of cellular respiration generates the most ATP molecules

Answer 1

The Electron transport chain of the cellular respiration generates the most ATP molecules.

Explanation:

The cellular respiration takes place in three phases: glycolysis, Kreb's cycle and Electron transport.

In glycolysis net gain of 2 ATP occurs, Kreb cycle 2 GTPs, ETC 32 ATPs

In Kreb's cycle 2 GTP, 6 NADH, two FADH2 is formed. These are used in the electron transport chain to produce ATP by redox and oxidation reactions.

Each NADH produces 3 ATPs

each FADH2 produces 2 ATP

GTP=ATP