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BIOL 2004 Study Guide - Final Guide: Pyruvic Acid, Oxidative Phosphorylation, Hydrogen Sulfide

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blushwoodchuck89
19 Apr 2016
School
Dalhousie University
Department
Biology
Course
BIOL 2004
Professor
Dr.Gunawardena

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Document Summary

Catabolism breaking down of organic molecules to get energy. Anabolism building up of organic molecules and using energy to do so. Lithotrophs: catabolism of organic molecules, (chemoautotrophs, get energy from oxidizing inorganic molecules. Aerobes: use oxygen as an electron acceptor, obligate: absolutely need oxygen, facultatitve: favour use of oxygen but can use other molecules in oxygen absence. Microaeropiles: prefer low oxygen levels but still need it present. Anaerobes: don"t use oxygen as an electon carrier. Aerotolerant: can still survive in the presence of oxygen. Obligate: oxygen is poisonous to them even at low levels. Various organic molecules feed into a core metabolic system. Glucose is converted into pyruvate through glycolysis pyruvate goes through. Every carbon in the original organic glucose becomes inorganic carbon dioxide. Electrons that were stripped off the carbons are transported away on. Oxidative phosphorylation: in mitochondrial membrane, nadh with the electrons feeds the electrons into a series of protein complexes.

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