BLG 151 Lecture Notes - Lecture 9: Equilibrium Constant, Thermodynamics, Uridine
25 Nov 2016
School
Department
Course
Professor
Document Summary
Contributes to cycling of elements in ecosystems. Some cycling reactions performed only by microbes. Metabolism is the total of all chemical reactions in the cell and is divided into two parts. Catabolism: breaking down large molecules into smaller ones. Anabolism: synthesizing larger molecules from smaller ones. Provide ready source or reducing power (electrons) The synthesis of complex organic molecules from simpler ones. Result of metabolism microbial cells can do work. Transport work: take up of nutrients, elimination of wastes, and maintenance of ion balances. Mechanical work: cell motility and movement of structures within cells. Metabolism principles: obeys laws of thermodynamics, energy in cells is often stored as atp, redox reactions play a critical role. 1: chemical reactions are organized into pathways, each reaction is catalyzed by an enzyme or ribozyme, biochemical pathways are regulated. A science that analyzes energy changes in a collection of matter called a system (e. g. a cell)
