Photosynthesis and Cellular Respiration



Photosynthesis and Cellular Respiration: TRUE OR FALSE

Indicate whether the following statements are true or false. If you determine a statement to be false, make the statement true by rewriting the statement with the appropriate changes.

1. Photosynthesis is the process whereby heterotrophs use the energy from sunlight to convert CO2 and H2O into ATP.

2. Plants do not perform cellular respiration because they do not have mitochondrion.

3. Carbon dioxide and water are released as a result of photosynthesis.

4. Carbon dioxide and water are high energy compounds while carbohydrates are low energy compounds.

5. Energy is released as chemical bonds are formed such as in the formation of ADP and Pi into ATP.

6. The role of chlorophyll, found in the cytoplasm of plant cells, is to capture light energy.

7. Starch is to animals as glycogen is to plants.

8. Glycogen is a stored form of glucose molecules found in our muscles and liver.

9. ATP is a source of chemical energy for both plants and animals.

10. The difference between ATP and ADP is that ADP is a higher energy molecule.

11. Phosphorylation is the process whereby ATP is changed into ADP and Pi.

12. Phosphorylation is an exergonic reaction.

13. If energy is absorbed it is an endergonic reaction.

14. The products of cellular respiration are oxygen, water and ATP.

15. Energy is released when ATPase changes ADP and Pi into ATP.

16. The electron transport system is not dependent on the presence of oxygen.

17. Anaerobic respiration produces more ATP molecules than aerobic respiration.

18. Because oxygen is the final acceptor in the electron transport chain aerobic respiration produces water whereas anaerobic respiration does not produce water.

19. Two types of aerobic respiration are lactic acid fermentation and alcoholic fermentation.

20. During lactic acid fermentation the glucose molecule is completely oxidized.

21. 36-38 ATP molecules are produced from 1 glucose molecule during anaerobic respiration while only 2 ATP molecules are produced from 1 glucose molecule during aerobic respiration.

22. Anaerobic respiration always produces carbon dioxide and either lactic acid or alcohol.

23. Alcohol and lactic acid have less potential energy than glucose.

24. The following reaction summarizes aerobic respiration: C H O + 6O + 36ADP + 36Pi ( 6CO + 6H O + 36ATP

Photosynthesis and Cellular Respiration: TRUE OR FALSE Answers

1. FALSE: Photosynthesis is the process whereby AUTOTROPHS use the energy from sunlight to convert carbon dioxide and water into ATP.

2. FALSE: Plants do perform cellular respiration because they have mitochondrion.

3. FALSE: GLUCOSE and OXYGEN are released as a result of photosynthesis.

4. FALSE: Carbon dioxide and water are LOW energy compounds while carbohydrates are HIGH energy compounds.

5. FALSE: Energy is STORED as chemical bonds are formed such as in the formation of ADP and Pi into ATP.

6. TRUE: The role of chlorophyll, found in the cytoplasm of plant cells, is to capture light energy.

7. FALSE: Starch is to PLANTS as glycogen is to ANIMALS.

8. TRUE: Glycogen is a stored form of glucose molecules found in our muscles and liver.

9. TRUE: ATP is a source of chemical energy for both plants and animals.

10. FALSE: The difference between ATP and ADP is that ATP is a higher energy molecule.

11. FALSE: Phosphorylation is the process whereby ADP and Pi are changes into ATP.

12. FALSE: Phosphorylation is an ENDERGONIC reaction.

13. TRUE: If energy is absorbed it is an endergonic reaction.

14. FALE: The products of cellular respiration are CARBON DIOXIDE, water and ATP.

15. FALSE: Energy is stored when ATPase changes ADP and Pi into ATP

16. FALSE: The electron transport system IS dependent on the presence of oxygen.

17. FALSE: Anaerobic respiration produces LESS ATP molecules than aerobic respiration.

18. TRUE: Because oxygen is the final acceptor in the electron transport chain aerobic respiration produces water whereas anaerobic respiration does not produce water.

19. FALSE: Two types of ANAEROBIC respiration are lactic acid fermentation and alcoholic fermentation.

20. FALSE: During lactic acid fermentation the glucose molecule is PARTIALLY oxidized.

21. FALSE: 36-38 ATP molecules are produced from 1 glucose molecule during AEROBIC respiration while only 2 ATP molecules are produced from 1 glucose molecule during ANAEROBIC respiration.

22. FALSE: Anaerobic respiration produces carbon dioxide and alcohol or lactic acid.

23. TRUE: Alcohol and lactic acid have less potential energy than glucose.

24. FALSE: The following reaction summarizes aerobic respiration: C6H12O6 + 6O2 → 6CO2 + 6H2O + energy

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