Mito_Structure_Genome2011

Mito_Structure_Genome2011 - Click to edit Master subtitle...

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Unformatted text preview: Click to edit Master subtitle style Mitochondria: Structure, Genome and Functions Overall function Mitochondrion: energy conversion organelle 1. Energy from food is changed into major energy currency : ATP Organization Figure 14-2 Molecular Biology of the Cell ( Garland Science 2008) Mitochondrion has 2 membranes and 2 compartments Outer membrane Intermembrane space Inner membrane; includes cristae Matrix space : enclosed by cristae OM Figure 14-8 (part 1 of 2) Molecular Biology of the Cell ( Garland Science 2008) Outer Membrane 1. Contains Porin , a channel-forming protein 2. Permeable to molecules less than 5 kDa Pore is formed from -barrels Inter-Membrane Space 1. Between inner and outer membranes 2. Chemically identical to cytoplasm Bacterial outer membrane has porin Inner membrane Figure 10-26 Molecular Biology of the Cell Inner Membrane 1. Folded into cristae Increases surface area 1. Has large quantities of cardiolipin A di-phosphatidylglycerol ( PG ) Abundant in bacteria and chloroplasts Decreases permeability of membrane to ions Contributes to establishment of membrane potential across inner membrane...
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This note was uploaded on 04/03/2011 for the course CBIO 3400 taught by Professor Shen,kipreos during the Spring '08 term at University of Georgia Athens.

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Mito_Structure_Genome2011 - Click to edit Master subtitle...

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