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L7 photosynthesis

L7 photosynthesis - Chapter 8 Lecture Guide Photosynthesis...

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Chapter 8 Lecture Guide Photosynthesis 1. Photosynthesis reaction: 6 CO 2 + 6 H 2 O + light energy –> C 6 H 12 O 6 + 6 O 2 -endergonic=energy-ATP -anabolic=simple->complex 2. Where does it all take place? a. Important plant structures: loses O2, H2O granum-stacks b. Photosynthetic pigments: Chlorophyll a is the primary photosynthetic pigment; chlorophyll b and carotenoids are accessory pigments. c. Absorption, transmittance, reflection of light. d. Photons:discre t e packets of light energy 1
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Chapter 8 Lecture Guide 3. The two stages of photosynthesis: Light-dependent reactions : “photo” part of photosynthesis; take place in the thylakoid membranes. Calvin cycle (light independent or “dark” reactions): the synthesis part of photosynthesis; takes place in the stroma of chloroplasts. 4. Photosystems : light-harvesting complexes + reaction center found in the thylakoid membrane. There are two photosystems in the light reactions of photosynthesis: photosystem I (PS I) and photosystem II (PS II), numbered in the
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