Phospholipids And Cellular Respiration

Phospholipids Ala Cys-Met-Ala- (His) polar hydroxyl → hydrophillic (water nonpolar →hydrophobic (water x) phospholipid tail Membranes leaflet dner are Assymetrical Phospholipid bilayers have selective permeability Small non-polar molecules (O2, CO₂, Ne) pass through easily •Small polar molecules pass through (slightly) •Large polar molecules will not pass charged molecules will not pass Unsaturated kinky = double bond higher permeable 99 Saturated single bonds lower permeability Increase Fluidity ↑ unsat. fatty acids. ↑ temp. Less Fluid ↑ sat. fatty acids • temp. Cholesterol makes unsaturated lipids less permeable Desaturases catalyzing the formation of hydrophobic tails • temp ↑ desaturases Carboneyl group Transport, Symport antiport Cellular Respiration Catabolic (E yeilding) CH0+60, 6 CO₂ +6 H₂O+ energy glucose + oxygen carbon + water dioxide Break down molecules •Produce ATP Anabolic Synthesis of larger molecules from smaller components ATP Major E currency in cells phosphate group base E is released when ATP is hydrolyzed •Only lasts 30s I min sugar •possesses ↑ potential E = unstable not stored 2= ADP Respiration GL/COLYSIS PYRKIVATE KREBS CYCLE ELECTRON TRANSPORT AND PROCESSING OKIDATIVE PHOSPHORYLATION • Aerobic NACH NACH - FADIA oxygen •Anaerobic Chicen CHERS produce A no CYCLE Drygen 00 HO Chemiosmosis ATF ATP •most production of ATP