BSC2010 Study Guide - Amphiphile, Hydrophile, Phospholipid
Document Summary
The plasma membrane permeability allowing to it more exhibits some easily than cross selective substances others are. Phospholipids amphipathic molecules containing hydrophobic and hydrophilic regions fluid. The membrane a with embedded is mosaic it mosaic model proteins structure states that fluid a of various a in warm. At restrains movement temperatures cholesterol of phospholipids temperatures. At cool cholesterol maintain fluidity by preventing tight packaging. Peripheral proteins to the bound are membrane surface of the penetrate the core transmembrane. Hydrophobic such dissolve pass easily through in as the nonpolar hydrocarbons lipid the molecules can bilayer membrane and. Polar cross molecules the like membrane do not sugar easily. Transport of the hydrophilic membrane proteins allow substances passage across. Channel proteins facilitate the called passage aquaporins of water p g. Carrier and across proteins bind change the shape membrane to to molecules shuffle them. Diffusion molecules the into is to the tendency spread available out evenly space for.
