120 means a 12 c chain with no double bonds which

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Unformatted text preview: r Waals 23 + 24 Membrane Fluidity ! Lipid melting point !  Given the melting points of some fatty acids, what factors influence the melting point? !  12:0 means a 12-C chain with no double bonds !  Which FAs melt more readily and why? !  Polyunsaturated chains + 25 Membrane Fluidity ! Lipid melting point !  Given the melting points of some fatty acids, what factors influence the melting point? !  Which FAs have the highest Tm and why? !  Longest chains !  Degree of saturation more important than length of chain + 26 Membrane Fluidity ! Lipid melting point ! Depends on length of chain and degree of saturation ! For saturated chain, Tm " as chain length " ! Takes more energy to disrupt extensive vdW interactions + Membrane Fluidity ! Lipid melting point !  Depends on length of chain and degree of saturation !  Double bond introduces kink – less efficient packing !  Lower Tm !  Longer chains less mobile than shorter !  Saturated less mobile tha...
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This document was uploaded on 02/02/2014.

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