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What are components of Photosynthesis |
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Sunlight is absorbed by cholorphyll (plants mainly absorb frequencies in the red/blue range) |
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*Occurs in green plants, algae, some bacteria *Cholorophyll captures sun's energy *Convert solar energy into chemical energy that is stored in carbohydrates *Overall Reaction CO2 + H20 --> C6H12O6 + O2 |
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Leaf of plant consists of... |
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1. Petiole (stemlike part)
2. Blade (flat, broad part)
Upper and lower epidermis Mesophyll layer contains chloroplasts |
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thylakoids -stack on another (grana) -contains chlorophyll A |
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What are the 2 stages of Photosynthesis |
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1. Light Reactions
2. Calvin Cycle (or Dark Reactions) |
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-sunlight captured -occurs in grana (thylakoid membrane) |
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Calvin cycle (dark reactions) |
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-sugar is synthesized -occurs in stroma |
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units of comples molecules in a thylakoid membrane |
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Reaction center includes... |
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molecule that is the primary electron acceptor |
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electrons move up as energy hill... |
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1. photosystem II absorbs sunlight 2. electrons are "enegergized" 3. redox reactions occur down the ETC, ATP fromed 4. water is split (O2 given off) 5. photosystem I receives electrons as they reach bottom of hill 6. electrons are energized and transferred down hill until they are received by NADP+ 7. NADP+ is reduced to NADPH 8. NADPH is used in calvin cycle |
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