photosynthesis5

photosynthesis5 - Photosynthesis Supramolecular Chemistry,...

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Supramolecular Chemistry, UAF, 2005 Photosynthesis Photosynthesis
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Supramolecular Chemistry, UAF, 2005 Photosynthesis Photosynthesis Where does the energy come from that sustains all life? The Sun!! Well most of it anyway……
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Supramolecular Chemistry, UAF, 2005 Respiration vs. Photosynthesis Respiration vs. Photosynthesis Photosynthesis and respiration as complementary processes in the living world. Photosynthesis uses the energy of sunlight to produce sugars and other organic molecules. These molecules in turn serve as food. Respiration is a process that uses O 2 and forms CO 2 from the same carbon atoms that had been taken up as CO 2 and converted into sugars by photosynthesis. In respiration, organisms obtain the energy that they need to survive. Photosynthesis preceded respiration on the earth for probably billions of years before enough O 2 was released to create an atmosphere rich in oxygen. (The earth's atmosphere presently contains 20% O 2 .)
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Supramolecular Chemistry, UAF, 2005 Cellular Respiration -vs- Photosynthesis Cellular Respiration -vs- Photosynthesis Exergonic and endergonic reactions of metabolism Exergonic: C 6 H 12 O 6 + 6O 2 6CO 2 + 6H 2 O G = -686 kcal/mole Cellular respiration! Endergonic: 6CO 2 + 6H 2 O C 6 H 12 O 6 + 6O 2 G = +686 kcal/mole Photosynthesis! Provides the energy to run cell processes Allows plants to make energy rich sugars from energy poor molecules
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Supramolecular Chemistry, UAF, 2005 Overview of Photosynthesis Overview of Photosynthesis 6CO
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This note was uploaded on 05/04/2009 for the course BIO BIO124 taught by Professor Allen during the Spring '09 term at Middlesex CC.

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photosynthesis5 - Photosynthesis Supramolecular Chemistry,...

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