photosynthesis
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| photosynthesis | converts solar energy into chemical energy of a carbohydrate
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| autotrophs | they produce their own food
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| heterotrophs | consumers
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| small holes in the leafs | Stomata
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| chlorplasts | the organelle that carry on photosynthesis
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| Stoma | semi fluid around the chloroplast
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| Flattened sacs | thylakoids
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| grana | stacked thylakiods
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| Chlorophyll | pigment in plants; absorbs violet-blue/red light: reflects green light
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| light reactions | photosynthesis using solar energy from the sun in the daytime
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| Calvin cycles | light- independent reaction- carbon fixation; synthesizes organic molecules from CO2 in air and energy in ATP?NADPH; not need light to work takes place in the stroma
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| mesophyll | thick layer of cells rich in chloroplasts
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| Chlorophyll A | main photosynthetic pigment; only pigment that can directly convert light to chemical energy
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| Chlorophyll B | secondary light- absorbing pigment; can absorb wavelengths that chlorophyll alpha can't
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| Carotenoids | absorbs wavelenths not efficiently absorbed bt chlorophyll
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| porphyrin ring | ring structure w/ alternating single/double bonds with MG atom in middle; energy channeled though carbon-bond system
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| action spectrum | relative effectiveness of different light wavelengths on photosynthesis
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| photoefficiency | high absorption efficiency leads to ability to absorb only a narrow bands of light
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