MICR 221 Lecture Notes - Lecture 9: Maltose, Symporter, Histidine

• School: Queen's University
• Department: Microbiology and Immunology
• Course: MICR 221
• Professor: Jarrell

Document Summary

Composition all cells have one, 5-10 nm thick, lipids (lack sterols) and peripheral/integral proteins (peripheral interact w integral ex. Retains cytoplasm, selectively permeable, where transport sys and chemotaxis proteins are located, site of respiration, e gen, photosynthesis, memb and wall synthesis. Sub level phosphorylation in cytoplasm- atp synthesized from adp and p coupled ot breakdown of organic sub (ex. glycolysis, fermentation) Etc in cm: each chain member is reduced then oxidized by two carriers final e- acceptor (o in aerobes and nitrate or sulfate in anaerobes) e- come from tca cycle creating. Nadh and fadh2 (reduced cofactors) when glucose pyruvate co2. As e- are passed down resp chain the e released is used to pump h across cm. Since cm is impermeable to h it creates a ph and a charge grad: protonmotive force proposed by. Peter mitchell (alkaline and -ve inside), protons enter at certain sites (atpase, mota and b, transport sys.