Chapter 8 1. In what organelle does photosynthesis occur in plants? - chloroplasts 2. What are the reactants and products for the overall reaction of photosynthesis? - reactants: co2, and h2o - products: glucose, oxygen, and water 3. What are the two major stages of photosynthesis? - 1. light reactions - thylakoids - 2. calvin-benson cycle - stroma 4. What are the reactants and products of light reactions: - yields NADPH + H+ and ATP What are the reactants and products of dark reactions: - uses products of light reactions to make CO2 a carbohydrate (this is called fixation) 5. What is light? - source of energy and info packaged into photons and behave a wave 6. What does wavelength relate to the energy of a photon? - shorter wavelength = greater energy of photons 7. What happens when a molecules absorbs a photon? -absorbs its energy 8. Why are plants green? - chlorophyll does not absorb green light efficiently 9. What is an antenna system? A reaction center? - energy passed from one pigment molecule to another. high energy to low evergy; reaction center - final pigment molecule
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