photosynthesis_7

photosynthesis_7 - photosynthesis Chapter 7 Outline •...

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Unformatted text preview: photosynthesis Chapter 7 Outline • Ph0tosynthesis overview • Photosynthetic structures • Light types • Main stages of photosynthesis – Light phase – Dark phase aka calvin cycle Energy Flow • Sun energy • Conservation of Energy – flow Who Uses Photosynthesis Who Uses Photosynthesis Some protozoa Who Uses Photosynthesis Some Bacteria like cyanobacteria Photosynthesis • Harvest of light energy from sun and convert to glucose – Uses co2 & water (reactants) – Produces glucose & oxygen • Occurs in the thylakoid membrane of chloroplast – Uses pigments (Chlorophyll a & b) • Metabolic pathway – Light phase – Dark phase (calvin cycle) Photosynthesis Photosynthesic Structures • Green parts of plants (or animals) contain chloroplasts • Concentrated in leaves – ½ million/ Sq mm • Chlorophyll (a&b) – Green pigment • Chloroplasts in Mesophyll cells • Stomata used to regulate gas availability Leaf structure Chloroplast • Membrane bound organelle • Stroma- space • Granum of stacked thylakoids – Site of photosynthesis – Interconnected membrane sacs Chloroplast Stroma Granum Thylakoid Stomata • Regulate Gas exchange= co2, o2, water vapor • Reduce water evaporation 6Co2 + 6H2O C6H12O6 +6O2 Light...
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This note was uploaded on 12/12/2011 for the course BIO 10 taught by Professor Staff during the Fall '11 term at Mesa CC.

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photosynthesis_7 - photosynthesis Chapter 7 Outline •...

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