BIOL 102 Lecture Notes - Lecture 12: Macromolecule, Activation Energy, Exergonic Reaction
Document Summary
You can transfer energy but you can neither create or destroy it. Chemical energy energy in molecular bonds. All biological macromolecule groups can be broken down for energy. However, the energy available to do work decreases. When energy changes form, the total amount of energy remains constant. Some energy that we had gets lost. Total energy = usable energy + unusable energy. G free energy or amount of energy for work. Reactants have more free energy than the producs = exergonic state. Reactants have less free energy than the products = endergonic state (non- (spontaneous) spontaneous) requires energy. Take an exergonic reaction with a high amount of energy to make a endergonic reaction . Taking subunits going through anabolism (atp -> adp) to make macromolecules then taking those through catabolism (adp -> atp) to make more subunits like a cycle. Phosphate group (3 groups not just one)