How many stages are involved in aerobic cellular respiration? Briefly describe each stage.

Aerobic cellular respiration consists of four main stages: -glycolysis, pyruvate oxidation, the citric acid cycle, and electron transport. -In glycolysis, glucose is broken down into pyruvate, producing some ATP and NADH. -Pyruvate oxidation converts pyruvate into carbon dioxide, acetyl molecules, and NADH. -The citric acid cycle fully oxidizes acetyl molecules to CO2, generating more ATP, FADH2, and NADH. -In electron transport, NADH and FADH2 from the previous stages are used to produce ATP through an electron transport system.