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Cellular Respiration

Section 9-1. Cellular Respiration. In the Mitochondria . Section Outline. Section 9-1. Chemical Pathways A. Chemical Energy and Food B. Overview of Cellular Respiration C. Glycolysis 1. ATP Production 2. NADH Production D. Fermentation 1. Alcoholic Fermentation

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Cellular Respiration

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  1. Section 9-1 • Cellular Respiration In the Mitochondria.

  2. Section Outline Section 9-1 • Chemical Pathways A. Chemical Energy and Food B. Overview of Cellular Respiration C. Glycolysis 1. ATP Production 2. NADH Production D. Fermentation 1. Alcoholic Fermentation 2. Lactic Acid Fermentation

  3. Chemical Pathways Section 9-1 Glucose Krebs cycle Electrontransport Glycolysis Alcohol or lactic acid Fermentation (without oxygen)

  4. Figure 9–2 Cellular Respiration: An Overview Section 9-1 Mitochondrion Electrons carried in NADH Electrons carried in NADH and FADH2 Pyruvic acid Glucose Electron Transport Chain Krebs Cycle Glycolysis Mitochondrion Cytoplasm

  5. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  6. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  7. Figure 9–3 Glycolysis Section 9-1 Glucose 2 Pyruvic acid To the electron transport chain

  8. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  9. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  10. Figure 9–4 Lactic Acid Fermentation Section 9-1 Lactic acid Glucose Pyruvic acid

  11. Section Outline Section 9-2 • The Krebs Cycle & Electron Transport A. The Krebs Cycle B. Electron Transport C. The Totals D. Energy and Exercise 1. Quick Energy 2. Long-Term Energy E. Comparing Photosynthesis and Cellular Respiration

  12. Flowchart Section 9-2 Cellular Respiration Glucose(C6H1206) + Oxygen(02) Glycolysis KrebsCycle ElectronTransportChain Carbon Dioxide (CO2) + Water (H2O)

  13. Figure 9–6 The Krebs Cycle Section 9-2 Citric Acid Production Mitochondrion

  14. Figure 9–6 The Krebs Cycle Section 9-2 Citric Acid Production Mitochondrion

  15. Figure 9–7 Electron Transport Chain Section 9-2 Electron Transport Hydrogen Ion Movement Channel Mitochondrion Intermembrane Space ATP synthase Inner Membrane Matrix ATP Production

  16. ATP Totals • Theoretical Yield: • 4 ATP from substrate-level phosphorylation (net) • 1 ATP per proton pumped across the inner mitochondrial membrane • 3 protons per NADH (10 NADH per glucose = 30 ATP) • 2 protons per FADH2 (2 FADH2 per glucose = 4 ATP) • Transport of the NADH formed in glycolysis across the mitochondrial membrane - 2 ATP (total) • Total = 4 + 30 + 4 - 2 = 36 mol ATP per glucose

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