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| light reactions photosynthesis |
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Definition
| light energy absorbed by chlorophyll drives the synthesis of organic molecules in the chloroplast |
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| cell tissue inside a leaf (30-40 chloroplasts) |
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| dense fluid surrounding chloroplasts |
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| sacs that have chlorophyll inside the thylakoid membranes |
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| 6CO2 + 12H2O + lIGHT --> C6H12O6 + 6O2 + 6H2O |
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| broaden the spectrum of colors that can drive photosynthesis and also photoprotection (absorb and dissipate excessive light energy that would damage chlorophyll or interact with oxygen |
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| Describe the role of ATP and NADPH in the Calvin cycle |
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| Describe the major consequences of photorespiration |
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Definition
- Photorespiration consumes O2 and organic fuel and releases CO2 without producing ATP or sugar
- photorespiration is a problem because on a hot, dry day it can drain as much as 50% of the carbon fixed by the Calvin cycle |
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| CAM (combats photorespiration) |
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| C4 (combats photorespiration) |
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| enzyme that catalyzes the carbon fixation reaction from a 5-carbon ribulose biphosphate to two 3-phosphoglycerate |
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