01:119:115 Lecture Notes - Lecture 1: Exergonic Reaction, Joule, Cellular Respiration

• School: Rutgers University
• Department: Biological Science
• Course: 01:119:115
• Professor: Daniel Stern Cardinale

Document Summary

I: metabolism: sum of all chemical reactions and energy transformations in an organism, regulated to maintain homeostasis, an emergent property of life due to orderly interactions between molecules. Metabolic pathway: begins with a specific molecule, ends with a product, each step catalyzed with a specific enzyme (see photo, 2 types f metabolic pathways: anabolic and catabolic. Anabolic pathways: synthetic, simple molecules complex molecules, ex: dehydration reaction & synthesis of protein from amino acids, requires energy. Catabolic pathways: break down, complex molecules simple molecules, releases energy, ex: cellular respiration, break down glucose. Ii: energy: the capacity to do work (able to do something, or supply heat, 2 forms of energy, kinetic energy: energy of motion, potential energy: stored energy, the capacity to do work. Laws of thermodynamics: study of energy tranformations, 1st law of thermodynamics: Energy cannot be created nor destroyed, only converted from one to another principle of conservation of energy.