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Chapter 8: Harvesting Energy: Glycolysis and Cellular Respiration At a Glance

Case Study: The Flight of the Hummingbird

8.1 How Is Glucose Metabolized?

8.2 How Is the Energy in Glucose Captured During Glycolysis?

• Glycolysis Breaks Down Glucose to Pyruvate, Releasing Chemical Energy

A Closer Look: Glycolysis

• Some Cells Ferment Pyruvate to Form Lactate

Health Watch: Why Can You Get Fat by Eating Sugar?

• Other Cells Ferment Pyruvate to Alcohol

8.3 How Does Cellular Respiration Capture Additional Energy from Glucose?

• Pyruvate Is Transported to the Mitochondrial Matrix, Where It Is Broken Down via the Krebs Cycle

A Closer Look: The Mitochondrial Matrix Reactions

• Energetic Electrons Produced by the Krebs Cycle Are Carried to Electron Transport Chains in the Inner Mitochondrial Membrane
• Chemiosmosis Captures Energy Stored in a Hydrogen Ion Gradient and Produces ATP

A Closer Look: Chemiosmosis in Mitochondria

• Glycolysis and Cellular Respiration Influence the Way Organisms Function

Case Study Revisited: The Flight of the Hummingbird

Links to Life: A Jug of Wine, a Loaf of Bread . . .