PCB 3703C- Midterm Exam Guide - Comprehensive Notes for the exam ( 18 pages long!)
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5 Oct 2017
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Phospholipid are most abundant lipids in the membrane and contain a head (hydrophilic; likes water) and a tail (hydrophobic; avoids water: function includes: Contains channels for transportation of substances and ions. Contains 2 types of proteins such as integral and peripheral proteins. Peripheral proteins: are mainly located in cytoplasm and support the: glycocalyx: short chain of carbohydrate projected out from the external surface of cytoplasmic side of the membrane via a network of filaments glycoproteins or glycolipids. Function: cell to cell binding and recognition: movement of substances across membrane. Atp is needed fat soluble molecules across the membrane. Diffusion: movement of small, uncharged molecules like o, co2 and. (1) passive process substances can pass freely down conc gradient; no. (2) active process substances move from a lower to higher conc gradient; (3) vesicular or bulk transport there are two types of bulk transport: