Chapter 8

Chapter 8 - Chapter 8-Harvesting Energy: Glycolysis and...

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Chapter 8—Harvesting Energy:  Glycolysis and Cellular Respiration I. How is glucose metabolized? a. Most cells can metabolize a variety of organic molecules to produce ATP i. Virtually all cells metabolize glucose for energy at least part of the time 1. Some, such as the nerve cells in your brain, rely almost entirely on  glucose as a source of energy ii. Glucose metabolism is less complex than the metabolism of most other  organic molecules iii. When using other organic molecules as energy sources, cells usually first  convert the molecules to glucose or other compounds that enter the  pathways of glucose metabolism b. The chemical equations for glucose formation by photosynthesis and for the  complete metabolism of glucose back to CO 2  and H 2 O are almost perfectly  symmetrical i. Photosynthesis  6 CO 2  + 6 H 2 O + sunlight + energy C 6 H 12 O 6  + 6 O 2 ii. Complete Glucose Metabolism  C 6 H 12 O 6  + 6 O 2 6 CO 2  + 6 H 2 O +  chemical and heat energies c. The conversion of energy into different forms always results in the decrease of  the amount of concentrated, useful energy i. A cell can extract and store a great deal of chemical energy
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This note was uploaded on 04/09/2008 for the course BIOL 1001 taught by Professor Minor during the Spring '08 term at LSU.

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Chapter 8 - Chapter 8-Harvesting Energy: Glycolysis and...

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