1. In order for photosynthesis to occur the following must be present (hint: review the photosynthesis equation): a. _________________________________ as the energy source. b. _________________________________ as the carbon source. c. _________________________________ as the electron donor. d. _________________________________ for the absorption of light energy. 2. Explain why grow lights for house plants are never green. 3. Explain why plants that have been kept in the dark for a week will still be able to conduct cellular respiration. 4. Describe the purpose of the light-dependent reactions and where they occur in the chloroplast. 5. Describe the purpose of the light-independent reactions and where they occur in the chloroplast. 6. For your observations during the carbon fixation experiment, suggest a way in which it would be possible to measure the rate of photosynthesis.
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3) Photosynthesis is broadly comprised of two stages: the light reactions and synthesis reactions. What are the reactants and products of each stage? 4a) Are electrons themselves transferred from pigment-to-pigment in Photosystem II? Explain your answer. 4b) Once the electrons hit the special chlorophyll describe what happens in the light reactions. Use the following words: redox, electron transport chain, primary electron acceptor, water split(ting), proton gradient ATP synthase, thylakoid space, stroma, NADPH.
Adi S.
Write the summary chemical equation for photosynthesis. Photosynthesis is divided into two processes. What happens during the light reactions? What is the principal photosynthetic pigment involved in the light reactions? What other photosynthetic pigments are involved in the light reactions? What happens during the Calvin cycle? In Part I: Effect of Light Intensity on the Rate of Photosynthesis, develop a hypothesis for this experiment. Be sure to refer to the Scientific Method Lab about developing a good hypothesis. Hypothesis: In Part II: Separation of Chloroplast Pigments by Paper Chromatography, What is the purpose of paper chromatography in this experiment? What is the independent variable in this experiment? What is the dependent variable in this experiment?
Derrick D.
The diagram below shows events triggered by the absorption of light by a chloroplast in a plant. Which of the following questions regarding the process of photosynthesis can best be answered by this diagram? A. What happens to the electrons extracted from carbon dioxide during photosynthesis? B. How is carbon from carbon dioxide incorporated into a glucose molecule during photosynthesis? C. What compound or structure in the cell harvests light energy during the light-independent processes of photosynthesis? D. When is oxygen produced during photosynthesis, and what is its source?
Caitlyn H.
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