01:119:116 Lecture Notes - Lecture 7: Estrogen Receptor, Glutamine, B Vitamins
10 Mar 2016
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Document Summary
Concept 8. 1 an organism"s metabolism transforms matter and energy, subject to the laws of thermodynamics. Concept 8. 2 the free-energy change of a reaction tells us whether or not the reaction occurs spontaneously. Concept 8. 3 atp powers cellular work by coupling exergonic reactions to endergonic reactions. Concept 8. 4 enzymes speed up metabolic reactions by lowering energy barriers. 8. 1 an organism"s metabolism transforms matter and energy, subject to the laws of thermodynamics. Metabolism: totality of an organism"s chemical reactions: emergent property of life that arises from orderly interactions between molecules. Enzyme 1(rxn 1) enzyme 2(rxn 2) enzyme 3(rxn 3) Metabolism manages the material and energy resources of a cell. Some release energy by breaking down complex molecules to simpler compounds. Catabolic pathways: release energy by breaking down complex molecules into simpler compounds: cellular respiration and the breakdown of glucose in the presence of oxygen, is an example of a pathway of catabolism (hydrolysis, degradative processes, breakdown pathways.
