1 / 15

Cellular Respiration

Cellular Respiration. “Getting Energy to Make ATP”. Section 9.3 Pg. 237-243. Cellular Respiration. Plants and animals get glucose, but how do cells get energy from it Cellular Respiration Definition: the process by which mitochondria break down food molecules to produce ATP

haile
Download Presentation

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 “Getting Energy to Make ATP” Section 9.3 Pg. 237-243

  2. Cellular Respiration • Plants and animals get glucose, but how do cells get energy from it • Cellular Respiration • Definition: the process by which mitochondria break down food molecules to produce ATP • Glucose (6C)  ATP’s • 2ATP  38 ATP’s (total produced = ???)

  3. Cellular Respiration • Three stages to cellular respiration • Glycolysis • Citric acid cycle • Electron transport chain

  4. Glycolysis • Reaction occurs in the cytoplasm of a cell. • Glucose (6C)  2 pyruvic acid (3C) • Reaction does not need oxygen to occur (Anaerobic)

  5. Glycolysis • Three final products: • NADH (2) • ATP (2) • Pyruvic acid (2) • Two ATP needed for glycolysis and only four are made not efficient process to make ATP.

  6. Citric Acid Cycle (or Krebs Cycle) • Reaction takes place in the mitochondria of a cell • Takes the pyruvic acid (3C) and makes 2 more ATP & 6 CO2 • Also makes many electron acceptors for final stage Electron carrier  electron acceptor NAD- NADH FAD  FADH2

  7. Electron Transport Chain(final stage of cellular respiration) • occurs in the inner membrane of the mitochondria • From the citric acid cycle, the electron carriers pass energized electrons along to the electron transport chain • NADH and FADH2 pass energized electrons from protein to protein within the membrane, which release small amounts of energy

  8. The Electron Transport Chain

  9. Electron Transport Chain

  10. Fermentation • Anaerobic process that follows glycolysis when cell are without oxygen for a short period of time. • Two major types • Lactic acid fermentation • Alcoholic fermentation

  11. Lactic Acid Fermentation • Definition: series of anaerobic chemical reactions in which pyruvic acid uses NADH to form lactic acid and NAD+, which is then used in glycolysis. • You get only 2 ATP for one glucose molecule • Lactic acid builds up in your muscles, and that is why your muscles ache when you over exercise.

  12. Alcoholic Fermentation • Definition: another type of fermentation that is used by, among others, yeast cells to produce CO2 and ethyl alcohol. • Only producing 2 ATP molecules

  13. Comparing Fermentation to Cellular Respiration

  14. Comparing Photosynthesis and Cellular Respiration

  15. Comparing Photosynthesis and Cellular Respiration

More Related