Membrane Transport PDF
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Uploaded by ReformedBagpipes3544
Universiti Malaya
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Summary
This document provides information on cell membrane transportation mechanisms. It details various transport methods, including passive and active transport, as well as vesicle-based transport with accompanying diagrams.
Full Transcript
Membrane transport B D C A E F I H G Membrane proteins : Part of membrane / interact with membrane Fluid Mosaic Model Semi permeability No energy required...
Membrane transport B D C A E F I H G Membrane proteins : Part of membrane / interact with membrane Fluid Mosaic Model Semi permeability No energy required Energy required Down concentration gradient Can go against concentration gradient Non polar Small Lipophilic Polar OSMOSIS ---- Aquaporin Large Water concentration Solute concentration Ion channels Leak channels Gated channels Carrier proteins Primary active transport – uses ATP directly Na+/K+ pumps H+ pumps Ca+ pumps H+/K+ pumps Secondary active transport Vesicle transport Transport larger molecules using membranous sacs/vesicles
