CH 7 Membrane structure & function

Maintains concentration and ion gradients cotransport

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Unformatted text preview: nding site – Wide Round – Narrow Round – PO4d + - Proton Pump • Is there a concentration gradient? • Is there an ion gradient? • What direction are the solutes/ions traveling? • Maintains concentration and ion gradients Cotransport (Coupled to Active Transport) • H+ ion is actively (ATP) pumped • H+ diffuses through facilitated diffusion • Provides the FORCE for sucrose to enter the membrane Membrane Structure & Function • Fluid mosaics of lipids and proteins • Selectively permeable • Transport mechanism – Passive transport (uses Diffusion) – Active transport...
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This note was uploaded on 05/01/2011 for the course BIO 120 taught by Professor Annapowolny during the Fall '10 term at Spelman.

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