Chapter 9C Homework Questions

1. Where is oxygen utilized in respiration? What is the role of oxygen in respiration?

2. How many ATP’s are produced for every NADH oxidized in the electron transport chain for FADH? Draw a table that accounts for ATP production per glusoe molecule.

3. Why are 38 ATP per glucose produced in bacteria but only 36 ATP per glucose in yeast?

4. In bacteria where are the enzymes of oxidative phosphorylation located?

5. How many membranes must NADH from glycolysis cross to be oxidized in the mitochondria?

6. What are at least three products of fermentation? What do you suppose is the function of anaerobic fermentation in animals? Would plants have a corresponding need?

7. Where does the oxidation of fat take place? How many ATP will be produced from the complete oxidation of a 12 carbon fatty acid? How does this compare to the ATP yield of 2 glucose molecules?

8. When a runner in a marathon “hits the wall” what is most likely happening physiologically?

9. What is the effect of treating cells with cyanide? Would yeast cells be able to grow in the presence of cyanide? Would human cells be able to?

10. What enzymes in glycolysis are allosteric. What would be the inhibitor of these enzymes?