Lipid
Micelles of fatty acids in water are organized such that the __________ faces the solvent and the __________ are directed toward the interior

hydrocarbon chains, carboxylic acid groups
carboxylic acid groups, hydrocarbon chains heads
both (a) and (b)
hydrophilic heads, hydrophobic tails

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Lipid
Phospholipid contains

long water-soluble carbon chains
hydrophilic heads and hydrophobic tails
positively charged functional groups
both (b) and (c)

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