7.4: During Oxidative Phosphorylation, Chemiosmosis Couples Electron Transport to ATP Synthesis
Key Terms: Cytochromes, ATP Synthase, Chemiosmosis, Proton-Motive Force,
BELLWORK: Watch and take your own notes on the Oxidative Phosphorylation and Chemiosmosis Khan Academy video
IN CLASS READING of Concept 7.4: Pages 149-154 in your text.
From page 149
1. State the main objective of this chapter.
2. Summarize the net ATP production so far (Glycolysis + Citric Acid Cycle)
3. Explain where most of the energy extracted from glucose is at this point.
From page 150
4. State (once again) where the electron transport chain is in eukaryotes.
5. Describe how the folding of the inner mitochondrial membrane benefits the cell.
6. Describe what happens to electron carriers during electron transport.
7. State the final electron acceptor of the electron transport chain.
8. List the 2 sources of electrons for the electron transport chain. When were these made?
From page 151
9. Determine if the electron transport chain makes ATP directly.
10. State where ATP Synthase is found in eukaryotes.
11. State where ATP Synthase is found in prokaryotes.
12. State the power source for ATP Synthase.
13. Draw a cell membrane with an ATP synthase embedded in it. Add H⁺ in correct amounts on either side to show a difference in H⁺ concentration.
From page 152
14. Describe how the cell generates and maintains the H⁺ gradient that drives ATP synthesis.
15. State the only way H⁺ can cross back into the mitochondrial matrix from the intermembrane space.
From page 153
16. Decide whether or not chemiosmosis only occurs in mitochondria.
17. Describe how chloroplasts make use of chemiosmosis.
18. Describe how prokaryotes utilize the proton-motive force.
19. Justify the awarding of the Nobel Prize to Peter Mitchell in 1978.
20. Sequence the flow of most energy during respiration.
From page 154
21. State the percentage of potential energy in glucose that gets transferred to ATP.
22. Compare that percentage to the efficiency of an automobile converting the energy in gasoline to energy that moves the car.
23. Explain what happens to the rest of the energy that was in glucose.
24. Describe an example of an organism actually reducing the efficiency of cellular respiration on purpose.
25. Predict what would happen if there were no O₂ in figure 7.14
26. In the absence of O₂, as in the previous objective, explain what would happen if you decreased the pH of the intermembrane space of the mitochondrion.
2. Summarize the net ATP production so far (Glycolysis + Citric Acid Cycle)
3. Explain where most of the energy extracted from glucose is at this point.
From page 150
4. State (once again) where the electron transport chain is in eukaryotes.
5. Describe how the folding of the inner mitochondrial membrane benefits the cell.
6. Describe what happens to electron carriers during electron transport.
7. State the final electron acceptor of the electron transport chain.
8. List the 2 sources of electrons for the electron transport chain. When were these made?
From page 151
9. Determine if the electron transport chain makes ATP directly.
10. State where ATP Synthase is found in eukaryotes.
11. State where ATP Synthase is found in prokaryotes.
12. State the power source for ATP Synthase.
13. Draw a cell membrane with an ATP synthase embedded in it. Add H⁺ in correct amounts on either side to show a difference in H⁺ concentration.
From page 152
14. Describe how the cell generates and maintains the H⁺ gradient that drives ATP synthesis.
15. State the only way H⁺ can cross back into the mitochondrial matrix from the intermembrane space.
From page 153
16. Decide whether or not chemiosmosis only occurs in mitochondria.
17. Describe how chloroplasts make use of chemiosmosis.
18. Describe how prokaryotes utilize the proton-motive force.
19. Justify the awarding of the Nobel Prize to Peter Mitchell in 1978.
20. Sequence the flow of most energy during respiration.
From page 154
21. State the percentage of potential energy in glucose that gets transferred to ATP.
22. Compare that percentage to the efficiency of an automobile converting the energy in gasoline to energy that moves the car.
23. Explain what happens to the rest of the energy that was in glucose.
24. Describe an example of an organism actually reducing the efficiency of cellular respiration on purpose.
25. Predict what would happen if there were no O₂ in figure 7.14
26. In the absence of O₂, as in the previous objective, explain what would happen if you decreased the pH of the intermembrane space of the mitochondrion.
No comments:
Post a Comment