Worksheet: Photosynthesis, the process. 1. What major categories of organisms are photosynthetic? 2. What is the overall chemical reaction for photosynthesis? 3. In typical plants, what are the main photosynthetic organs? What is the main photosynthetic tissue within these organs? 4. Which wavelengths of visible light are generally most effective as an energy source for photosynthesis? Which wavelengths are generally least effective? 5. In what organelles does photosynthesis take place? 6. What is necessary for the light-dependent reactions to take place? What are the products of the light-dependent reactions? (In other words, in very general terms, summarize the light-dependent reactions). 7. What is necessary for the light-independent reactions to take place? What are the products of the light-independent reactions? (In other words, summarize the light- independent reactions? 8. What is chlorophyll? What is the function of accessory pigment (antenna pigment) molecules? 9. What is meant by the term “carbon fixation”? In which part of photosynthesis does it take place? 10. In photosynthesis, carbon atoms are reduced. What is the ultimate source of electrons for this process? 11. In which part of photosynthesis is oxygen formed? 12. How does the process of photosynthesis influence the composition of the atmosphere? 13. In very general terms, what is respiration?
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