Physiology 2130 Lecture Notes - Citric Acid Cycle, Acetyl-Coa, Pyruvic Acid
21 May 2013
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Document Summary
Three building blocks circulate in the body and can be used to create new structures in the cell or to form atp or be stored for later use. Death usually occurs before all proteins are used up. 3 reactions that take place within cell to produce energy from the breakdown of food. Reaction 1 glycolysis occurs in cytoplasm no o2 anaerobic (1 glucose = 2 atp) Reaction 2 citric acid cycle occurs in mitochondria o2 aerobic (1 glucose = 2 atp) Coa to enter citric acid cycle can be broken down to glycerol and free fatty acids glycerol can enter glycolysis fatty acids can be converted to acetyl coa to enter citric acid cycle. Metabolism of glucose stored as glycogen in most cells of body (mostly liver and muscle) common fuel source (only fuel source for brain) Glucose will enter cell and will be converted to glucose 6 phosphate.
