Worksheet Chapter 7: Cellular Respiration

1. Fill in the blank: The primary site for the Krebs cycle and electron transport chain during aerobic respiration is the ________.

2. Define the term 'oxygen debt' in the context of human muscle physiology.

3. Explain the role of yeast in the bread-making industry.

4. State the two main products of alcohol fermentation in yeast besides ATP energy.

5. Construct a comparison table listing three differences between Aerobic Respiration and Lactic Acid Fermentation in human muscle cells.

6. True or False: Paddy plants can tolerate high levels of ethanol because their cells produce the alcohol dehydrogenase enzyme.

7. How many ATP molecules are produced net per glucose molecule during aerobic respiration?

8. True or False: Glycolysis requires molecular oxygen to split glucose into pyruvate.

9. An athlete completes a 400-meter sprint and experiences muscle cramps: (a) Identify the respiratory process taking place in the athlete's muscle cells during the sprint. (b) Write the chemical equation for this process. (c) Explain how the muscle cramps are relieved after the race.

10. Compare the energy efficiency of aerobic respiration with alcohol fermentation.