CH7 - Handout for CHAPTER 7 - Photosynthesis Cycle...

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Unformatted text preview: Handout for CHAPTER 7 - Photosynthesis Cycle involving 2 important coupled reactions 2 important Coupled Reactions 1 Exergonic and 1 endergonic-they pair up and produce a cycle Photosynthesis (ender) 6CO2+ 6H2O+ LIGHT ENERGY C6H1206+O2 The number of atoms you start with is the number you end with Cellular respiration (exer) C6h1206+02 6co2 +6h20 +energy (to produce ATP and as heat) Overall summary of photosynthesis (PS) and respiration reactions Photosynthesis-uses energy from the sun (plus weater and co2) to make glucose Respiration- breakdown of glucose (to water and co2) which releases energy used to make ATP Energy in sunlight Energy out-- ATP Glucose- middle man Why use glucose at all? Why use a middle man at all? Why not use energy form the sun to make ATP directly? More efficient, less loss of energy as heat. This strategy never evolved, it doesnt exist....
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This note was uploaded on 03/27/2011 for the course BIO 1410 taught by Professor Rast during the Fall '10 term at Texas State.

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CH7 - Handout for CHAPTER 7 - Photosynthesis Cycle...

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