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Introduction to Cellular Respiration

Learn about the process of cellular respiration, including glycolysis, the Krebs cycle, and chemiosmosis. Explore how ATP is produced and the role of phosphates in energy transfer. Understand the energy flow from glucose to ATP and the importance of oxygen in the electron transport chain. Discover the connection between photosynthesis and cellular respiration.

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Introduction to Cellular Respiration

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  1. Hand in W.S. 5.3 before the bell rigns Review Chapter 5 Quiz 2 Review – glycolysis, cellular respiration Notes – Krebs cycle, chemiosmosis Energy Flow "Ad astra per aspera." (to the stars through hardship) Anonymous To learn about photosynthesis Title: Biology 11/30/06 Class Topics Objectives: Sunday, January 5, 20206:21 AM

  2. Class Assignments What By When • Read 104-110 11/30/06 • W.S. 5.3 (DR/Quiz) 11/30/06 • W.S. Chapter 5 Science Skills 12/4/06 • Chapter 5 Test 12/6/06 • Due this class period • Due next class period • Due in the future

  3. Grade Sheet 1A – SR p. 61 - 5 pts Measurement W.S. – 10 pts 3A SR p. 42 – 6 pts 4A – SR p. 47 – 5 pts 2A – Measurement W.S. – 10 pts SR p. 80 – 5 pts

  4. Basics of Cellular Respiration • NRG for cell? • Phosphates in ATP? • ADP to ATP needs NRG and ? • 1 glucose = ATP? • NRG in ATP? • ATP to ADP what is released? • Adenosine?

  5. Cellular respiration • C6H12O6 + 6O2 6 CO2 + 6H2O + 36 ATP Photosynthesis

  6. From: http://www.accessexcellence.org/RC/VL/GG/ana_Pyruvate.html

  7. Electron Transport ChainSeries of enzymes on mitochondrial membrane • Gain 32 ATP from the release of energy from • FADH2 (Krebs)- 4 ATP • NADH (Krebs)- 24 ATP • NADH (Glycolysis) 4 ATP • Oxygen is the final electron acceptor • Has to be present to change NADH,FADH2 to NAD+ and FAD

  8. ATP synthesis • Occurs along the membranes in both the chloroplast and mitochondria • The electron transport chain creates a concentration gradient between e- and H+ • Water is final product

  9. Animations • Community College of Baltimore County • Smith College • Virtual Cell Animation

  10. H+ inside and e- outside (H+ cannot go through membrane) • ATP synthetase • The energy from their passing through is used as the energy needed to make ADP + P ATP • When 2 H+, 2e- and oxygen (final electron acceptor) all meet outside the membrane, water is formed

  11. Chemiosmosis • Formation of ATP in chloroplasts and mitochondria

  12. Energy Flow • Follow the energy from the sun to the end of chemiosmosis

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