Photosynthesis Homework

1. What are photosynthetic autotrophs (photoautotrophs)?
2. Describe the structure of the chloroplast, and draw it.
3. From what source is the oxygen given off in photosynthesis derived?
4. Briefly describe the two stages of photosynthesis.
5. Describe Englemann's discovery of which wavelengths of light produce the most O2 during photosynthesis. (see p. 205, Fig. 10.8)
6. Draw a graph which shows the relative frequencies of light which are absorbed by the photosystems.
7. Prepare a simplified drawing which models the paired photosystems I and II and includes their position
on the thylakoids and their relation to the electron transporting molecules.
8. Describe how light energizes a chlorophyll a molecule. (photooxidation)
9. Summarize the events in and around Photosystem II which result in light energy being converted to chemical energy.
10. Describe the path which an electron takes from PS II to NADP+
11. Explain how ATP is generated in the thylakoid.
12. What is the actual carbohydrate produced by the Calvin Cycle?
13. Where do the Calvin cycle reactions take place?
14. Name the enzyme that fixes CO2 in the Calvin cycle?
15. List the reactants and the products in the Calvin cycle (C3)
16. How do C4 plants fix CO2