BIOL 112 Lecture 5: Metabolism

• School: McGill University
• Department: Biology
• Course: BIOL 112
• Professor: Frieder Schoeck

Document Summary

Link smaller, simpler molecules together to form more complex molecules. Photosynthesis 6 co2 + 6 h2o + energy c6h12o6 + 6 o2. Complex molecules are broken down into simple molecules, releasing energy. 2 h2 + o2 2 h2o + heat. During energy conversion the total initial energy = total final energy. Energy spontaneously distributes from localization to spreading out when it is not stopped from doing so. Chemical reactions only happen with energy dispersal. Dispersal is the driving force for energy conversions. We need step by step equations showing energy levels per step. With a chemical reaction within the cell. Dispersing (increasing) entropy all within cell (s) Releasing heat, generating disorder/ dispersing energy into the environment. Actually g, can only calculate change in free energy. G energy is required to complete reaction. H is + -, t s is + - leading to four types of reactions. Denatured protein, lipid bilayer vs. individual lipids.