1 / 12

Cellular Respiration

Cellular Respiration. Aerobic and Anaerobic Metabolism. Glycolysis takes place in the cytoplasm. Glycolysis Simplified (greatly ). If oxygen is available (aerobic), then pyruvate enters the Krebs cycle. If oxygen is not available(anaerobic), then pyruvate undergoes fermentation.

megan-hinton
Télécharger la présentation

Cellular Respiration

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. Cellular Respiration Aerobic and Anaerobic Metabolism

  2. Glycolysis takes place in the cytoplasm

  3. Glycolysis Simplified (greatly ) If oxygen is available (aerobic), then pyruvate enters the Krebs cycle If oxygen is not available(anaerobic), then pyruvate undergoes fermentation

  4. Aerobic respiration

  5. Synonymous Terms • Krebs cycle • Citric acid cycle • Tri-carboxylic acid cycle (TCA cycle)

  6. Mitochondrial Structure The Krebs cycle takes place across inner membrane space (matrix) of the mitochondrion

  7. ElectronTransport

  8. The Role of Oxygen (O2) Oxygen is the terminal (final) electron acceptor  Oxygen is needed only in the very LAST step of cellular respiration! ½ O2 + 2H+ + 2e- H2O

  9. Mitochondrial Structure Infoldings (cristae) increase the area of membrane surface available for electron transport

  10. Aerobic Respiration C6H12O6 + 6O2 → 6CO2 + 6H2O + 38 ATP • The Krebs cycle and electron transport take place in the mitochondria • The Krebs cycle and electron transport maximize ATP yield • 38 ATPvs.2 ATP for fermentation

  11. Anaerobic Respiration(Alcohol Fermentation) C6H12O6 → 2 CH3CH2OH + 2 CO2 + 2 ATP glucose ethyl alcohol carbon dioxide Alcohol fermentation takes place in yeast and some bacteria, and yields only the 2 ATP produced in glycolysis

  12. Anaerobic Respiration(Lactic Acid Fermentation) C6H12O6 → 2 C3H6O3 + 2 ATP glucose lactic acid Lactic acid fermentation takes place in animal cells and some bacteria and fungi; it yields only the 2 ATP produced in glycolysis.

More Related