Chapter 8 Flashcards

1
Q

lipids are structurally

A

have the same feature of insolubility in water due to their hydrophobic and amphipathic character

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2
Q

lipids are functionally (4)

A

energy storage, component of membranes, enzyme cofactors,signalling

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3
Q

lipids have a low oxidation state

A

they have more electrons to donate than carbs storing twice as much energy

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4
Q

lipids have a low hydration state

A

they are more hydrophobic with limited interaction to water providing a dehydrated energy storage form

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5
Q

fatty acid composition consists of

A

an even number of C’s (12-24)

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6
Q

double bonds in fatty acids:

A

saturated(no double bonds)

unsaturated (1 double bond)

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7
Q

the number of carbons in a fatty acids means

A

the number of double bonds and the position of double bond by delta^n

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8
Q

the melting temperature of a fatty acid reflects

A

the length and degree of saturation of the hydrocarbon tails

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9
Q

triacylglycerols are

A

the storage lipids in animals and plants

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10
Q

saponification

A

treatment of animal fat with a strong base will break the ester linkages of triacylglycerols

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11
Q

waxes are

A

non polar esters of long chain fatty acids and long chain alcohols

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12
Q

membrane bikayers of lipids

A

define cells and regulate the composition of the intracellular environment

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