1 Name Date Number Reading Guide Chapter 9 1. What sort of energy is found in glucose? (be specific). 2. What role do electrons have in the energetics of cellular respiration? 3. Use the following terms correctly in a sentence: redox reactions, oxidation, reduction, reducing agent and oxidizing agent. 4. Write the summary equation for cellular respiration. Identify the following: what is getting oxidized, what is getting reduced, what the oxidizing agent and what is the reducing agent. 5. What happens to the potential energy of electrons as they move towards more electronegative atoms in a chemical reaction? 6. Use your answer to question 5 to explain why organic molecules are good sources of chemical energy. 7. What role does NAD + play in cellular respiration? What enzyme helps it perform this function? 8. Which reaction releases more energy, the combustion of glucose, or the controlled release of energy from cellular respiration? 9. What are the three stages of cellular respiration and where do they each occur? 10. Label the picture to the right. Describe substrate level phosphorylation. As you label the next diagrams track the movement of carbon from glucose to CO 2 . Track the movement of electrons as well. 11. Label the diagram of glycolysis to the right:
Transcript
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Name Date Number
Reading Guide Chapter 9
1. What sort of energy is found in glucose? (be specific). 2. What role do electrons have in the energetics of cellular respiration? 3. Use the following terms correctly in a sentence: redox reactions, oxidation, reduction, reducing agent and oxidizing
agent. 4. Write the summary equation for cellular respiration. Identify the following: what is getting oxidized, what is getting
reduced, what the oxidizing agent and what is the reducing agent. 5. What happens to the potential energy of electrons as they move towards more electronegative atoms in a chemical
reaction? 6. Use your answer to question 5 to explain why organic molecules are good sources of chemical energy. 7. What role does NAD+ play in cellular respiration? What enzyme helps it perform this function? 8. Which reaction releases more energy, the combustion of glucose, or the controlled release of energy from cellular
respiration? 9. What are the three stages of cellular respiration and where do they each occur? 10. Label the picture to the right. Describe substrate level
phosphorylation.
As you label the next diagrams track the movement of carbon from glucose to
CO2. Track the movement of electrons as well. 11. Label the diagram of glycolysis to the right:
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12. Summarize the reaction regarding the transition reaction converting pyruvate to acetyl CoA. Indicate what goes in and
what comes out of this reaction. 13. What molecule goes into the Citric Acid Cycle?
How many ATP’s are made from 1 spin of this cycle? How many FADH2’s are made and how many NADH’s are made from 1 spin of this cycle?
14. By the end of the citric acid cycle, where have the 6 carbons that were originally in glucose gone? 15. Beginning with 1 molecule of glucose, how many ATP’s have been made by the end of glycolysis and the Citric Acid
Cycle? How were these ATP’s made? 16. Where is most of the energy that was originally in the glucose located by the end of glycolysis and the Citric Acid
Cycle? 17. What is oxidative Phosphorylation? 18. What are cytochromes?
19. Define chemiosmosis and label the diagram to the right. chemiosmosis:
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20. Label the diagram below of the activities occurring in the ETC.
21. Complete the summary diagram of cellular respiration. You are responsible for these #’s and locations!
22. What is the point of fermentation?
23. What has more chemical energy, pyruvate or lactic acid? 24. Why do fats provide a little more than twice as many calories per gram as compared to carbohydrates or proteins?
Hint: Think of the output of the Citric Acid Cycle and how many acetyl CoA’s you could get from one long fatty acid.
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25. Why would AMP stimulate cellular respiration and ATP inhibit it? 26. Why would phosphofructokinase being allosteric in character be an advantage to the control of cellular respiration?
