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photosynthesis - Biology 1201 Section 1 Spring 2007...

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Biology 1201 Section 1 Spring 2007 Worksheet on Photosynthesis Photosynthesis "perhaps the most important reaction in biology" (See Figures 10.5, 10.12. 10.13, 10.18 and 10.21 in the text for a summary.) Autotroph – are “self-feeders”; that is, they sustain themselves without eating anything derived from other organisms. “produces” Heterotroph – “other”. Unable to make their own food, they live on compounds produced by other organisms. Chlorophyll _A__ and chlorophyll __B__ and accessory pigments in the __Thlyakoid________ membranes absorb light in the ___visible____ spectrum. The light energy is used by Photosystem I and Photosystem II in the Thylakoid_______ membranes of the chloroplast to drive the production of _ATP_____ and _NADPH_____. These are the "light-dependent reactions." In the light reactions, __h20___ is split and releases _O2______ as a product. The _ATP_____ and __NADPH________ of the light reactions are used in the ___Calvin_________ cycle (the dark reactions) in the _stroma______ of the chloroplast to synthesize carbohydrates from _CO2_____. For the light-dependent reactions and the dark reactions in the diagram
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