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Aerobic Respiration

Aerobic Respiration. Biology Mrs . Harper 10 /19/17. October 19 , 2017. Download notes Begin working on Do Now Have homework (Anaerobic Respiration WS) opened on your computer. Do Now 2/9/16. What does ATP stand for? What does ADP stand for?

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Aerobic Respiration

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  1. Aerobic Respiration Biology Mrs. Harper 10/19/17

  2. October 19, 2017 • Download notes • Begin working on Do Now • Have homework (Anaerobic Respiration WS) opened on your computer

  3. Do Now 2/9/16 • What does ATP stand for? What does ADP stand for? • How is energy released in the ATP-ADP cycle? • Define anaerobic respiration. • What is lactic acid fermentation? What is it used for? • What is alcohol fermentation? What is it used for? Adenosine Triphosphate Adenosine Diphosphate Breaking bonds between phosphate groups Respiration without oxygen Converts pyruvic acid to lactic acid Used to make cheese, yogurt Converts pyruvic acid to ethanol Used to make bread

  4. Review: Anaerobic Respiration • Anaerobic respiration does ____________ require oxygen. • Anaerobic respiration includes _______________ and __________________ • Anaerobic respiration produces ____________ molecules NOT glycolysis fermentation 2 ATP

  5. Aerobic Respiration • Aerobic respiration- does require oxygen to occur • Cellular respiration is the process where sugar and oxygen are used to produce water and carbon dioxide • Aerobic respiration occurs in three steps, it is not a single-step process

  6. Three Stages of Aerobic Respiration • Stage 1: Glycolysis • Stage 2: Krebs Cycle • Stage 3: Electron Transport Chain

  7. Checks For Understanding • Does aerobic respiration require oxygen or not? • What is the second stage of aerobic respiration? Yes, it does require oxygen The Krebs Cycle

  8. Glycolysis • Glycolysis- process that splits glucose into 2 molecules of pyruvic acid • Forms 2 molecules of ATP

  9. Krebs Cycle • Krebs Cycle is also known as the Citric Acid Cycle • Process is described as a series of chemical reactions in which pyruvic acid is broken down into carbon dioxide • This process produces most of the ATP used by the cell and the carbon dioxide that we exhale.

  10. Krebs Cycle

  11. Checks For Understanding • How many ATP molecules are produced during glycolysis? • What is the other name for the Krebs Cycle? • What gas is produced in the Krebs Cycle? 2 ATPs Citric Acid Cycle Carbon Dioxide (CO2)

  12. Electron Transport Chain • High energy electrons are generated during the Krebs Cycle to convert ADP to ATP. • Krebs Cycle and Electron Transport Chain (ETC) produce 36 ATP molecules. • These 36 ATPs combined with 2 ATPs from glycolysis mean that a total of 38 ATPs are produced during aerobic respiration.

  13. Aerobic Respiration

  14. Checks for Understanding • How many ATP molecules are produced in total for aerobic respiration? • In which organelle does aerobic (cellular) respiration occur? About 38 ATPs Mitochondria

  15. Video • https://www.youtube.com/watch?v=-Gb2EzF_XqA • Watch the video on Code Red. • Write down 3 things that you learn from the video at the bottom of your notes. • I will check these during independent practice.

  16. Assignment • Working silently and independently on the worksheet • On multiple choice questions, if you do not give a short explanation then you will NOT receive credit. • Unfinished classwork will become homework

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