1 / 9

Chapter 9-2 Cellular Respiration The Kreb’s Cycle & Electron Transport Chain

Chapter 9-2 Cellular Respiration The Kreb’s Cycle & Electron Transport Chain. Kreb’s Cycle. What is it? With oxygen, the Kreb’s cycle is the 2 nd stage of cellular respiration. What Happens?

turner
Download Presentation

Chapter 9-2 Cellular Respiration The Kreb’s Cycle & Electron Transport Chain

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Chapter 9-2Cellular RespirationThe Kreb’s Cycle & Electron Transport Chain

  2. Kreb’s Cycle • What is it? • With oxygen, the Kreb’s cycle is the 2nd stage of cellular respiration. • What Happens? • Pyruvic acid (from glycolysis) is broken down into Carbon Dioxide in a series of energy-releasing reactions

  3. Kreb’s Cycle Continued… CFU: Explain your answers! • Is Oxygen required for Glycolysis? • No – it can supply energy when O2 is not available. • Is oxygen required for the Kreb’s Cycle? • Yes – if it did not have oxygen, fermentation would take place

  4. Electron Transport Chain • What comes after the Kreb’s Cycle? • The Electron Transport Chain • What is the Electron Transport Chain? • Uses high-energy electrons (NADH) from the Kreb’s cycle to convert ADP into ATP.

  5. The Energy Totals • Glycolysis Total: • 2 ATP • Kreb’s Cycle & • Electron Transport • Total: • 34 ATP • TOTAL: • 36 ATP Investment 36 ATP

  6. Energy & Exercise • Quick Energy • Such as: Running from danger! • Comes from: • Glycolysis • Lactic Acid Fermentation

  7. Energy & Exercise • Long-Term Energy • Such as: Marathon • Comes from: • Cellular Respiration • Glycolysis • Kreb’s Cycle • Electron Transport Chain

  8. Photosynthesis VS Cell Respiration • Opposite Processes! • Equations are reversed! Photosynthesis 6CO2 + 6H2O C6H12O6 + 6O2 Carbon Dioxide + Water Sugar + Oxygen Cellular Respiration C6H12O6 + 6O26CO2 + 6H2O Sugar + Oxygen Carbon Dioxide + Water

  9. Photosynthesis VS Cell Respiration Photosynthesis Cellular Respiration Function • Energy Storage Energy Release Location • Chloroplasts Mitochondria Reactants • Carbon Dioxide and WaterSugar and Oxygen Products • Sugar and Oxygen Carbon Dioxide and Water

More Related