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Unformatted text preview: Chapter 7 Study Questions 1. In most land plants, photosynthesis occurs in cells of the __________ of the leaves, because these cells contain the largest numbers of chloroplasts. 2. Light energy is initially captured by "photosystems" within thylakoid membranes. Photosystems are organized arrays of __________. 3. Why is carbon dioxide a key molecule in the light- independent reactions of photosynthesis? 4. What is photorespiration? 1. In most land plants, photosynthesis occurs in cells of the __________ of the leaves, because these cells contain the largest numbers of chloroplasts. 5. In the light-dependent reactions of photosynthesis, ATP is produced by chemiosmosis. Describe this process. 6. A lovely tree called the flowering plum has beautiful pink flowers in spring and deep-purple leaves in summer. What types of pigments are plentiful in this plant? Can photosynthesis occur in these purple leaves? Explain your answer. 7. Take a deep breath and slowly exhale. The oxygen in that breath is being used by your mitochondria in reactions that produce ATP from sugars and other food molecules you ate. Where did that oxygen come from originally? 8. A scientist studying photosynthesis illuminated a culture of...
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