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Chapter 9—Test BMultiple Choice 1. c 2. c 3. b 4. b 5. d 6. d 7. d 8. b 9. c 10. a 11. b 12. d 13. c 14. d 15. b Modified True/False 16. F; oxygen 17.F; products 18. T 19. T 20. F; ATP Completion 21. the sun 22. 2 23. 2 24. C Short Answer 25. Photosynthesis releases oxygen into the atmosphere as a product, whereas cellular respiration uses oxygen as a reactant to release energy from food. 26. Citric acid is the first compound formed in the process. 27. Alcoholic fermentation produces carbon dioxide, alcohol, and NAD+, whereas lactic acid fermentation produces lactic acid and NAD+. Using Science Skills 28. Sample answer: The equation for cellular respiration is 6O2 + C6H12O6 → 6CO2 + 6H2O + Energy. The mouse should give off CO2 and H2O. 29. Sample answer: The mouse requires oxygen and sugar from food (glucose) to carry out cellular respiration. Fresh air containing oxygen flows in through the tubes from outside the flasks into flasks B, C, and D. Air mixed with whatever the mouse gives off flows from flask B into flask A. The mouse receives fresh air and should be able to survive in the chamber for the duration of the experiment. 30. Sample answer: If the mouse is carrying out cellular respiration, it will give off CO2. The CO2 will flow into flask A, and the phenolphthalein in flask A will change from pink to clear. ................
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