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Cellular Respiration - Glycolysis

Cellular Respiration - Glycolysis - Cellular Respiration...

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Cellular Respiration – Chapter 7 How do organisms use energy? - work in cells uses ATP - ATP has to be replaced - Glucose, glycogen etc. broken down to make more ATP - Requires many steps but occurs quickly  Cellular Respiration - The metabolic pathway where cells harvest energy from metabolism of  food molecules - Glucose is one of the main food molecules used - Grouped into three different stages: 1. Glycolisis 2. Krebs Cycle 3. Electron Transport system Cellular Respiration – overview 1. Glycolysis The most widespread metabolic pathway Primitive & present in every cell type Glucose split into two 3-carbon compounds Hydrogens stripped from carbons Energy of broken bonds harvested & net production of 2 ATP Occurs in cytoplasm of cell (not mitochondria) Requires no organelles Requires no oxygen (the anaerobic metabolic pathway) 2. Krebs Cycle
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