Preview Chapter 6 Multiple Choice Short Response Extended Response Standardized Test Prep Preview Multiple Choice Short Response Extended Response

Chapter 6 Multiple Choice Standardized Test Prep Multiple Choice 1. Which of the following is a reactant in the Calvin cycle? A. O2 B. CO2 C. H2O D. C6H12O6

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 1. Which of the following is a reactant in the Calvin cycle? A. O2 B. CO2 C. H2O D. C6H12O6

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 2. Which of the following statements is correct? F. Accessory pigments are not involved in photosynthesis. G. Accessory pigments add color to plants but do not absorb light energy. H. Accessory pigments absorb colors of light that chlorophyll a cannot absorb. J. Accessory pigments receive electrons from the electron transport chain of photosystem I.

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 2. Which of the following statements is correct? F. Accessory pigments are not involved in photosynthesis. G. Accessory pigments add color to plants but do not absorb light energy. H. Accessory pigments absorb colors of light that chlorophyll a cannot absorb. J. Accessory pigments receive electrons from the electron transport chain of photosystem I.

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 3. Oxygen is produced at what point during photosynthesis? A. when CO2 is fixed B. when water is split C. when ATP is converted into ADP D. when 3-PGA is converted into G3P

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 3. Oxygen is produced at what point during photosynthesis? A. when CO2 is fixed B. when water is split C. when ATP is converted into ADP D. when 3-PGA is converted into G3P

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued The diagram below shows a portion of a chloroplast. Use the diagram to answer the question that follows. 4. Which of the following correctly identifies the structure marked X and the activities that take place there? F. stroma—Calvin cycle G. stroma—light reactions H. thylakoid—Calvin cycle J. thylakoid—light reactions

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued The diagram below shows a portion of a chloroplast. Use the diagram to answer the question that follows. 4. Which of the following correctly identifies the structure marked X and the activities that take place there? F. stroma—Calvin cycle G. stroma—light reactions H. thylakoid—Calvin cycle J. thylakoid—light reactions

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 5. light reactions : ATP :: Calvin cycle : A. H+ B. O2 C. G3P D. H2O

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued 5. light reactions : ATP :: Calvin cycle : A. H+ B. O2 C. G3P D. H2O

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued The diagram below shows a step in the process of chemiosmosis. Use the diagram to answer the question that follows. 6. What is the substance identified as Y in the image? F. H+ G. NAD+ H. NADPH J. ADP synthase

Multiple Choice, continued Chapter 6 Standardized Test Prep Multiple Choice, continued The diagram below shows a step in the process of chemiosmosis. Use the diagram to answer the question that follows. 6. What is the substance identified as Y in the image? F. H+ G. NAD+ H. NADPH J. ADP synthase

Chapter 6 Short Response Standardized Test Prep Short Response Chloroplasts are organelles with areas that conduct different specialized activities. Where in the chloroplast do the light reactions and the Calvin cycle occur?

Short Response, continued Chapter 6 Standardized Test Prep Short Response, continued Chloroplasts are organelles with areas that conduct different specialized activities. Where in the chloroplast do the light reactions and the Calvin cycle occur? Answer: The light reactions of photosynthesis occur along the thylakoid membrane. The Calvin cycle occurs in the stroma, surrounding the thylakoids.

Chapter 6 Extended Response Standardized Test Prep Extended Response The reactions of photosynthesis make up a biochemical pathway. Part A What are the reactants and products for both the light reactions and the Calvin cycle? Part B Explain how the biochemical pathway of photosynthesis recycles many of its own reactants, and identify the recycled reactants.

Extended Response, continued Chapter 6 Standardized Test Prep Extended Response, continued Answer: Part A The reactants for the light reactions of photosynthesis are sunlight, water, NADP+, and ADP. The products are oxygen, ATP, and NADPH. The reactants for the Calvin cycle are ATP, NADPH, CO2, and RuBP. The products are NADP+, ADP, and organic compounds. Part B ADP/ATP, NADP+/NADPH, and electrons are recycled during photosynthesis. RuBP, which reacts with CO2 in the Calvin cycle, is regenerated at each turn of the cycle.