Chapter 9 citric acid cycle

Chapter 9 citric acid cycle - to draw this step). d. What...

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B. Citric Acid Cycle (Krebs cycle) 1. Introductory information:  The citric acid cycle is the second major component of aerobic cellular  respiration. In this process, pyruvate molecules are completely oxidized to carbon  dioxide, while many coenzyme molecules are reduced (gain and carry electrons).  These reduced electron carriers will later be used to drive the synthesis of ATP.  This cyclical process takes place in the matrix of the mitochondrion. 2. Preparation step (links glycolysis to the citric acid cycle) --Figure 9.10 3. Basic events of citric acid cycle (Fig. 9.11) 4. A look at the details of the citric acid cycle (Fig. 9.12) 5. Summary of preparation step and citric acid cycle 6. Review questions a. Where does the citric acid cycle take place? b. Why is the citric acid cycle called a cycle? (what makes it cyclical?) c. What happens in the preparation step for the citric acid cycle? (Be able 
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Unformatted text preview: to draw this step). d. What is the significance of coenzyme A in the preparation step and in the citric acid cycle? e. If one molecule of pyruvate is enters the preparation step and the citric acid cycle, how many molecules of NADH are produced? How many FADH 2 ? How many ATP? f. For each molecule of pyruvate that enters the preparation step and the citric acid cycle, how many carbon dioxide molecules are released? g. If one molecule of glucose is completely oxidized via glycolysis, preparation step, and citric acid cycle, how many molecules of ATP (net) are generated? How many NADH? How many FADH 2 ? How many molecules of carbon dioxide are released? h. Why is oxaloacetate important in the citric acid cycle? How many carbon atoms are present in oxaloacetate?...
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Chapter 9 citric acid cycle - to draw this step). d. What...

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