BISC207 Lecture Notes - Lecture 7: Micelle, Phospholipid, Amphiphile

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BISC207 Full Course Notes
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BISC207 Full Course Notes
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The most common membrane lipid is a phospholipid. In water at about ph=7 polar heads orient to interact with water, nonpolar tails print to interact with each other. Bitch you better know what the fuck this is. Head groups may differ in size, shape, or charge. Membrane layers can differ in composition from each other. Carbohydrates can be affiliated with polar heads of phospholipids. Membranes are fluid within a leaflet the components rotate and change position relative to each other. Cholesterol in animal membranes stabilizes fluidity and decreases permeability. Molecules in soln are in constant random motion due to thermal energy. If there is a concentration gradient diffusion will result in net molecular movement until an equilibrium is reached. Water diffuses in response to relative solute concentrations. Can be used to describe the cell relative to environment or. The effect of varying tonicity visa versa. Most membranes contain proteins that alter membrane structure and function.

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