Photosynthesis Test Review Be sure to know The summary equation of photosynthesis including the source and fate of the reactants and products How leaf and chloroplast anatomy relates to photosynthesis How photosystems convert solar energy to chemical energy How linear electron flow in the light reactions results in the formation of ATP, NADPH, and O2 Questions 1. Groups of photosynthetic pigment molecules situated in the thylakoid membrane are called a. Photosytems b. Carotenoids c. Cholrophyll d. Grana 2. The main products of the light reactions are a. NADPH and FADH2 b. NADPH and ATP c. ATP and FADH2 d. ATP and CO2 3. The process in photosynthesis that bears the most resemblance to chemiosismosis and oxidative phosporylation in cell respiration is called a. Cyclic electron flow b. Noncyclic electron flow c. ATP synthase coupling d. Substrate level phosphorylation How chemiosmosis generates ATP in the light reactions How the Calvin cycle uses the energy molecules of the light reactions to produced G3P The metabolic and structural adaptations of C4 and CAM plants to arid, dry regions. Be able to label a diagram of the overview of photosynthesis 4. The major product of Calvin cycle is a. Rubisco b. Oxaloacetate c. Pyruvate d. Glyceraldehydes-3-phosphate 5. All of the following statements are false EXCEPT a. C3plants grow better in hot, arid conditions than do C4plants b. C4plants grow better in cold, moist conditions than do C3plants c. C3plants grow better in hot, arid conditions than do CAM plants d. CAM plants grow better in hot, arid conditions than do C3plants 6. Which of the following is mismatched with its location? a. Light reactions – grana b. Electron transport chain – thylakoid membrane c. Clavin Cycle – stroma d. ATP synthesis – double membrane surrounding cholorplast 7. The cholorphyll know as P680 has its electron “holes” filled by electrons from a. Photosystem I b. Photosystem II c. Water d. NADPH 8. CAM plants avoid photorespiration by a. Fixing CO2 into organic acids during the night and release these at night b. Performing Calvin Cycle at night c. Using PEP carboxylate to fix CO2 in the bundle sheath cells d. Keeping their stomata open during the day 9. How many turns of the the Calvin cycle are required to produce one molecule of glucose? a. 1 b. 3 c. 4 d. 6 10. What is the final electron acceptor for the electron transport chain in the light reactions? a. ATP b. NADP+ c. H2O d. CO2 Essay – Prepare for one of the following Cellular respiration and photosynthesis are basic cellular process. Below are key events in cellular respiration and/or photosynthesis. a. Explain how a photosytem concerts light energy into chemical energy b. Describe the function of water in both cellular respiration and photosynthesis The rate of photosynthesis may vary with the changes that occur in environmental temperature, wavelength of light, and light intensity. Using a photosynthetic organism of your choice, choose only one of the three variables (temperature, wavelength of light, or light intensity) and for this variable. a. Design a scientific experiment to determine the effect of the variable on the rate of photosynthesis for the organism; b. Explain how you would measure the rate of photosynthesis in your experiment; c. Describe the results you would expect. Explain why you would expect these results.