Photosynthesis

Photosynthesis - Chloroplasts 1. Where photosynthesis...

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Chloroplasts 1. Where photosynthesis occurs 2. Most are found in leaves 3. Chloroplasts have o Inner membranes/thylakoids Often stacked Bind chlorophyll and electron transport chain o Fluid space/stoma Conversion of CO2 to sugars Calvin cycle 4. Overview of photosynthesis o Light collection and use of light energy to produce energy-rich ATP and NADH Used to strip electrons from water Energize electrons Many chlorophyll molecules absorb light energy and pass it on to a special chlorophyll that gives up an electron This chlorophyll then gets back an electron from a water molecule leaving behind H+ and O2 Make ATP Electron transport chain o Pass energized electrons from NADP+ to NADPH o CO2 is converted to energy-rich sugar by ATP and NADH 5. The Calvin Cycle o C3 plants
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Plants that use the Calvin Cycle for energy So named because the first stable product of CO2 fixation is a 3-carbon product Advantages More tolerant of the cold Need less energy because they only use one cycle
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This note was uploaded on 07/06/2009 for the course EBIO 1210 taught by Professor Demmig-adam during the Fall '07 term at Colorado.

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Photosynthesis - Chloroplasts 1. Where photosynthesis...

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