BIOL 103 Lecture Notes - Lecture 14: Exergonic Reaction, Kinetic Energy, Cellular Respiration
17 Oct 2016
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Document Summary
An old idea, revived: starve cancer to death. Mutation and an uncontrolled division of the cell resulting in tumors. Cells are small units, a chemical factory, housing thousands of chemical reactions . Energy is the capacity to do work and cause change: kinetic energy: motion (transferring motions to other matter) Thermal energy: random movement of atoms --> bonds break. Thermodynamics: energy transformations within matter are studied: 1st law: energy in the universe is constant cannot be created or destroyed, 2nd: energy conversions increase the disorder of the, potential energy: stationary/position universe entropy. Chemical energy: energy available release in a chemical reaction. Molecule is taken apart by covalent bonds and energy is released allowing it to power other reactions in the body. All these endergonic and exergonic chemical reactions combined are called metabolism: metabolic pathway: series of chemical reactions that either break down a complex molecule or build up a complex molecule.
