B1510_module3_2_membranes_transport

B1510_module3_2_membranes_transport - Georgia Tech School...

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Georgia Tech School of Biology Spring 2011 Biology 1510 Membranes and transport What are the structures and lipid compositions of cell membranes in Bacteria, Archaea and Eukarya? How do changes in membrane components affect membrane properties and function? What are the major functions of biological membranes? How are molecules and substances transported across biological membranes?
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Georgia Tech School of Biology Spring 2011 Biology 1510 All lipids a. Are made from glycerol and fatty acids b. Contain nitrogen c. Have low energy content d. Do not dissolve well in water e. Both a) and d)
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Georgia Tech School of Biology Spring 2011 Biology 1510 All Cells Have Phospholipid Bilayer Membranes Phospholipids with fatty acid esters
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Georgia Tech School of Biology Spring 2011 Biology 1510 Archaea have different membrane phospholipids from Eubacteria and Eukarya Branched isoprenoid chains (1) vs fatty acids (5) Ether linkage (2) vs ester linkage (6) L-glycerol (3) vs D- glycerol (7) 2-sided monolayer (10) vs bilayer (9) http://en.wikipedia.org/wiki/Archaea
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B1510_module3_2_membranes_transport - Georgia Tech School...

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