Lecture 007 - Membrane Biology

Lecture 007 - Membrane Biology - Rate of transport...

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1 Bio1222 Lecture 8 - Membrane biology Bio1222 Fatty acid structure Conventional margarine contains unsaturated fatty acids. So why is it solid at room temperature?
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2 Bio1222 Saturated cis -unsaturated trans -unsaturated Hydrogenation of oils Why do plant cells have more unsaturated fatty acids than animal cells? Bio1222 Physiological importance of desaturation
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3 Bio1222 Membrane permeability Bio1222 Membrane proteins Can you predict that a gene encodes a transmembrane protein?
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4 Bio1222 Membrane transport ABC transporter Bio1222 Facilitated diffusion Why would you want to facilitate diffusion?
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Unformatted text preview: Rate of transport Concentration TRANSPORT KINETICS 5 Bio1222 Cystic brosis Epithelial cell Epithelial lining Chloride (Cl-) CFTR - Cystic brosis transmembrane conductance regulator 6000 nucleotides (1480 amino acids) over 27 exons on chromosome 7 Bio1222 C c x C c c c Why is CF so common? 1 in 2,500 Caucasian (European descent) children have CF- the disease is very rare in Africa and Asia (and descendants). ..Why? 6 Bio1222 Efux pump Efux pump Antibiotics Cell waste Disinfectants Antiseptics...
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This note was uploaded on 04/04/2009 for the course BIOLOGY 1222 taught by Professor Haffie during the Spring '09 term at UWO.

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Lecture 007 - Membrane Biology - Rate of transport...

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