Photosynthesis 3-29-10

Photosynthesis 3-29-10 - Photosynthesis: Autotrophs use...

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Unformatted text preview: Photosynthesis: Autotrophs use light to reduce carbon & make sugar- light-dependent reactions: photophosphorylation & photoreduction inputs = light (energy), H20 (electrons) outputs = ATP (for activation), NADPH (for reduction), O2 (waste) Photosystem: chlorophyll + proteins + antenna pigments, photoreduction (H2O -> NADPH)) - Cyanobacteria, chloroplasts (= endosymbionts) , thylakoid membranes- Photophosphorylation: light driven electron transport chain- H+ pumpinggenerates gradient, drives ATP synthase Light-independent reactions Calvin cycle = fix & reduce CO2 (use ATP, NADPH) ATP & NADPH from light reactions = e- & energy for Calvin cycle ( GAP synthesis ) Connecting Photosynthesis and Aerobic Respiration Light +Water +Air= Sugar!?! Photosynthesis Photosynthesis: Autotrophs O 2 H 2 O CO 2 Respiration: All Aerobic Organisms Biological Work: Anabolism (biosynthesis) Mechanical Work Transport Work Information Work Photophosphorylation Photoreduction Calvin Cycle: Fix & Reduce Carbon sugar e- carrier for biosynthesis Overview of Photosynthesis e...
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Photosynthesis 3-29-10 - Photosynthesis: Autotrophs use...

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