Chapter 8 Flashcards
lipids are structurally
have the same feature of insolubility in water due to their hydrophobic and amphipathic character
lipids are functionally (4)
energy storage, component of membranes, enzyme cofactors,signalling
lipids have a low oxidation state
they have more electrons to donate than carbs storing twice as much energy
lipids have a low hydration state
they are more hydrophobic with limited interaction to water providing a dehydrated energy storage form
fatty acid composition consists of
an even number of C’s (12-24)
double bonds in fatty acids:
saturated(no double bonds)
unsaturated (1 double bond)
the number of carbons in a fatty acids means
the number of double bonds and the position of double bond by delta^n
the melting temperature of a fatty acid reflects
the length and degree of saturation of the hydrocarbon tails
triacylglycerols are
the storage lipids in animals and plants
saponification
treatment of animal fat with a strong base will break the ester linkages of triacylglycerols
waxes are
non polar esters of long chain fatty acids and long chain alcohols
membrane bikayers of lipids
define cells and regulate the composition of the intracellular environment