HUMB1000 Lecture Notes - Lecture 5: Fluid Mosaic Model, Lipid Bilayer, Facilitated Diffusion
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3 Aug 2018
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Plasma membrane fluid mosaic model: cell membrane is always in a state of change and responds the to the environment around it, boundary of the cell-encloses and supports cell contents. Separates intracellular vs. extracellular (that are different) materials and determines what enters and exits the cell (selectively permeable: attaches cells to other cells and to the surround matrix (adhesion, cells communicate with environment through cell membrane. Peripheral or integral (runs all the way through) Many are involves in transporting molecules across the cell membrane (channel, carries, atp power pumps) Glycosylated means high amount of sugar molecules attached. Integral proteins that move ions from one side of the membrane to the other.
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