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Unformatted text preview: Chapter 10 Photosynthesis Conversion Process phototrophs and autotrophs producers Chemotrophs or heterotrophs consumers Photosynthesis converts light energy to chemical energy Chloroplasts Chlorophyll Mesophyll Stomata Stroma Thylakoids Equation Reverse of cellular respiration Splitting of Water is source of oxygen given off Two stages of photosynthesis Light Reaction or Light Dependent Reaction 1- Light energy absorbed by pigment molecules in photosystem II 2- Chlorophyll a reaction center energy excites e- 3- Excited and energized e- transported down ETC 4- electron removed from chlorophyll is replaced by e- from H 2 O a. O 2 released b. ions to chemiosmosis and ATP made with ETC (photophosphorylation) 5- Light energy excites chlorophyll in Photosystem I (and e- from PSII moves to replaced the excited e-) 6- Excited and energized e transported down ETC to final acceptor NADP+ which is reduced to NADPH Calvin Cycle (Light Independent or Dark Reaction) 1- RuBP picks up CO2 via enzyme rubisco...
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