Worksheet+1 - LARC Bio 93 Worksheet 1 Lectures 2-4 October...

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LARC – Bio 93 October 2, 2011 Worksheet 1 – Lectures 2-4 Pooja Patel patelph@uci.edu Lecture 2: Membrane Structure Properties of Plasma Membrane Thin bilayer, surrounds all cells Composed of: o ________________ : main fabric of membrane o ________________ : embedded in or associated with bilayer Integral Peripheral o ____________________ Only on extracellular surface Attached to proteins and lipids Membrane structure is fluid – held together by weak ________________ interactions Can drift ________________ (frequently) and ________________ (rarely) Three factors influence membrane fluidity: 1. ________________ a. ________________ : straight tails – increased/decreased fluidity b. ____________________ : kinked tails – increased/decreased fluidity 2. ________________ a. Increase in temperature – increased/decreased fluidity
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LARC – Bio 93 October 2, 2011 Worksheet 1 – Lectures 2-4 Pooja Patel patelph@uci.edu 3. ________________ a. Type of lipid, found in membrane of all animal cells b. Acts as temperature buffer c. At body temperature (37°C), increases/decreases fluidity d. At low temperature,
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This note was uploaded on 12/13/2011 for the course BIOSCI 93 taught by Professor Staff during the Fall '11 term at UC Irvine.

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Worksheet+1 - LARC Bio 93 Worksheet 1 Lectures 2-4 October...

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