Lecture #07 - Lecture 7 Prokaryotic Cell Envelopes BBOM 11e...

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1 Lecture 7 Lecture 7 Prokaryotic Cell Envelopes BBOM 11e Sec. 4.8-4.9 , 11.9 Virtual Field Trip Æ Microbial Motility Movies Introduction to Microbial Motility and Chemotaxis BBOM 11e Sec. 4.14, 4.16 Integral Membrane proteins: Transport Three classes of membrane transport systems: Three classes of membrane transport systems: Simple transport Group translocation ABC system Energy from ATP (e.g Uniporters, symporters, antiporters) (e. g. phoshotransferase system) (e.g. sugar transport systems) Function: Move small molecules across phospholipid permeability barrier against a concentration gradient; energy is required BBOM 11e Sec. 4.6-4.7 A TP B inding C assette Energy from PMF Energy from PEP
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