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Cellular Respiration Review

Cellular Respiration Review. What Are the 5 Stages of aerobic cellular respiration?. 1. Glycolysis 2. Oxidation Of pyruvate to Acetyl CoA 3. Krebs Cycle 4. Electron Transport Chain 5. Chemiosmosis. What do both aerobic and anaerobic cellular respiration have in common?.

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Cellular Respiration Review

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  1. Cellular Respiration Review

  2. What Are the 5 Stages of aerobic cellular respiration? • 1. Glycolysis • 2. Oxidation Of pyruvate to Acetyl CoA • 3. Krebs Cycle • 4. Electron Transport Chain • 5. Chemiosmosis

  3. What do both aerobic and anaerobic cellular respiration have in common? • Both run the process of Glycolysis outside of the mitochondria. • Both have a net yield of 2 ATP

  4. What do You Need to know about glycolysis? - What is the starting reactant in Glycolysis? Glucose - How much ATP is needed in glycolysis, and how much ATP is made Net and Gross amounts? Needed= 2 ATP Gross= 4 ATP Net= 2 ATP

  5. Anaerobic Respiration Anaerobic Respiration Yields 2 lactate or 2 ethanol Requires Glucose Produces water Net 2 ATP No Oxygen Requires Oxygen Net 36 ATP Uses Glycolysis

  6. What is Important about Stage 2 in Aerobic Cellular Respiration? What Is Needed to start the reaction? And Where does this reactant come from? Pyruvate, Which is the product of Glycolysis in the cytoplasm What are The Products of the Stage 2 Acetyl- CoA reaction for every 2 Pyruvate? 2 Acetyl CoA 2 NADH 2 CO2

  7. What do you need to know about the Krebs Citric Acid Cycle? What are the products of the Krebs Cycle for every 2 Acetyl CoA molecules? 2 FADH2 2 ATP 6 NADH 4 CO2 Starting with one glucose in the beginning of Glycolysis, How many spins of the Krebs Cycle will occur? 2 Spins Animation

  8. Electron Transport Chain and Chemiosmosis review. How are the FADH2 and NADH molecules made throughout aerobic respiration used in the ETC and Chemiosmosis? They become reduced and give their H+ ions to create a proton gradient for chemiosmosis. How does the proton gradient result in the creation of ATP molecules during Chemiosmosis? The ATP synthase sends the H+ ions through the inner membrane and phospharlizes ADP into ATP How is Water (H2O) created in the Electron Transport Chain? The final electron acceptor is oxygen which takes the electron and becomes H2O ETC and Chemiosmosis animation

  9. Match each stage with where it occurs in the Cell. Glycolysis Oxidation of Pyruvate Krebs Cycle Electron transport chain Proton Gradient Chemiosmosis Inner Mitochondrial Membrane Mitochondrial Matrix Cytoplasm Intermembrane Space

  10. What is the net gain of ATP for each stage of Cellular Respiration? Glycolysis Oxidation of Pyruvate Krebs Cycle Electron Transport Chain Chemiosmosis Total net gain in Aerobic Respiration 2 0 2 0 32 36

  11. How Much NADH is created in each of the stages? Glycolysis Oxidation of Pyruvate Krebs Cycle 2 NADH 2 NADH 6 NADH

  12. How are ATPs made at each stage? • Glycolysis- net 2 (substrate level phosphorylation) • Stage 3 – Krebs cycle- 2 ATP made (substrate level phosphorylation) • ETC and chemiosmosis –oxidative phosphorylation -32 more! • Net = 36 ATP

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