Chapter 8.3 End of Chapter Assessment, Understand Key Concepts
Terms in this set (9)
18. The first process in the light-dependent reactions of photosynthesis is
A. Light absorption.
19. Which substance from the light-dependent reactions of photosynthesis is a source of energy for the Calvin cycle?
20. The light-independent reactions of photosynthesis are also known as the
A. Calvin cycle.
21. ATP synthase in the chloroplast membranes makes ATP, utilizing the energy of highly concentrated
C. Hydrogen ions.
22. CAM plants are specialized to survive under what conditions that would harm most other kinds of plants?
C. Hot, dry conditions.
23. Explain the role of NADP+ as an electron carrier.
NADP+ carries energy by holding two electrons and a hydrogen ion. It carries the stored energy to other reactions that help build sugar molecules.
24. Describe the role of ATP synthase and explain how it works.
ATP synthase is a protein found in the thylakoid membrane that allows H+ ions to pass through it. As H+ ions pass through this protein, it rotates and binds ADP and a phosphate group together to produce ATP.
25. Summarize the events of the Calvin cycle.
During the Calvin cycle, plants use the energy that ATP and NADPH contain to build high-energy compounds that can be stored for a long time. The Calvin cycle uses six molecules of carbon dioxide to produce a single 6-carbon sugar molecule.
26. Discuss three factors that affect the rate at which photosynthesis occurs.
Temperature, amount of provided water, intensity of light.
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