The document defines and explains the stages of aerobic respiration including glycolysis, the Krebs cycle, and the electron transport chain. Glycolysis breaks down glucose to produce pyruvate and ATP. The Krebs cycle further breaks down pyruvate to produce NADH, FADH2, ATP, and carbon dioxide. The electron transport chain uses NADH and FADH2 to produce ATP through oxidative phosphorylation. In total, the complete aerobic respiration of one glucose molecule produces approximately 30-32 molecules of ATP.

4. Involves the exchange of oxygen and carbon dioxide at the respiratory surface. Involves the breakdown of complex organic such as glucose into simpler molecules with release Of energy. (ATP) RESPIRATION EXTERNAL CELLULAR

15. KREB'S CYCLE

19. GLYCOLYSIS

24. ELECTRON TRANSPORT CHAIN

30. SUMMARY 2 10 2 40 Total - - - 30(NADH + H +) 4(FADH2) Electron Transport System 2 6 0 2 Krebs Cycle 0 2 0 0 Link Reaction 0 2 2 4 Glycolysis FADH2 produced NADH + H + produced ATP Used ATP Produced Stage in Aerobic Respiration