01:119:115 Lecture Notes - Lecture 7: Negative Number, Exergonic Reaction, Joule

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: A Keating

Document Summary

Fig/table look at figure or table in textbook. Chapter 8. 1-8. 4: metabolism, sum of all chemical reaction + energy transformation carried out in an organism, regulated homeostasis, two types. Anabolism: synthetic, simple molecules complex molecules, require energy. Catabolism: degradative, complex simple, release energy. Energy capacity to do work: forms. Potential stored energy: law of thermodynamics. First law energy cannot be created or destroyed but energy can be converted from one to another. Total amount of energy in universe is not changing, but the total amount available to do work is decreasing. Chemical reactions of life: ultimate source of energy sun, cellular work, mechanical. Potential energy: stored in covalent bonds of high energy molecules. Reactants have more potential energy than the products: e is released, reactants products + energy, spontaneous high to lower free energy. Total e in the final state is less than total e in the initial state: g is negative number (loss of g)