1. Cell Energy Review Answer the following Q’s in your journal. (letter only) 1. The energy used by heterotrophs must be changed into a form that cells can use. The energy-transferring molecule used is a) DNA b) RNA c) ATP d) CO2 2. Which of the following statement is true: a) the mitochondria uses the sun’s energy directly b) the main source of energy for photosynthesis is carbohydrates c) the end product of photosyn. does not provide energy for cellular respiration d) carbohydrates are ultimately converted into ATP by the mitochondria 3. Carbs are formed from monomers (subunits) called: a) amino acids b) fatty acids c) monosaccharides d) nucleotides

2. Cell Energy Review – con’t 4. Photosynthesis is important for almost all life on earth because it a) produces oxygen b) uses simple sugars c) is responsible for most decay d) releases usable forms of nitrogen into the soil 5. The processes of photosyn. and respiration can be thought of as a cycle because a) one is used by plants and the other is used only by animals b) the products of one are used as the raw materials (ingredients) of the other c) both give off oxygen to be used by animals d) the both have the same purpose 6. In plant cells, the organelles that conduct photosyn. And cellular respiration respectively are a) chloroplasts and chromoplasts b) chromoplasts and leukoplasts c) chloroplasts and mitochondria d) mitochondria and cytoplasm

3. Cell Energy Review 7. An intermediate, 3-carbon product of aerobic respiration is a) pyruvic acid b) PGAL c) ATP d) glucose 8. Which of these is characteristic of aerobic respiration? a) requires oxygen b) requires carbon dioxide c) produces 2 ATP d) produces glucose 9. Which of these is characteristic of anaerobic respiration? a) requires oxygen b) requires chlorophyll c) produces 2 ATP and lactic acid d) uses carbon dioxide and water 10. Fermentation is a type of a) energy transfer b) anaerobic respiration c) photosynthesis d) chemical bond

4. Answer: T or F 11. Aerobic respiration is more efficient in producing energy for us than anaerobic. 12. Glycolysis occurs in cytoplasm of cells 13. Yeast are living cells 14. Fermentation produces ethyl alcohol, carbon dioxide and energy 15. Physical training enables one to carry on aerobic respiration for longer durations 16. The source of pain in muscle cells is a build-up of CO 2 17. One molecule of glucose can yield 38ATP as a result of the process of photosynthesis 18. And end product of photosynthesis is glucose and water 19. The electron transport chain transfers energy through the transfer of electrons 20. Photosynthesis accomplishes converting chemical bond energy to solar energy. 21. Great quantities of ATP are produced in the mitochondria

5. Check Your Answers 1. C11. T21. T 2. B12. T 3. C13. T 4. A14. T 5. B15. T 6. C16. F 7. A17. F 8. A18. F 9. C19. T 10. B20. F