Aof

Palmitic acid

Linoleic acid

figure 3-10

Fatty acids have a polar carboxyl head, highlighted in purple, and a nonpolar hydrocarbon tail, highlighted in green.

figure 3-10

Fatty acids have a polar carboxyl head, highlighted in purple, and a nonpolar hydrocarbon tail, highlighted in green.

figure 3-11

The lipid bilayer of a cell membrane is a double row of phospholipids. The "tails" face each other. The "head" of a phospholipid, which contains a phosphate group, is polar and hydrophilic. The two tails are two fatty acids and are nonpolar and hydrophobic.

Hydrophilic "head"

Hydrophobic "tail"

Phospholipids —

Water

Hydrophilic "head"

Phospholipids —

Hydrophobic "tail"

Phospholipids —

www.scilinks.org Topic: Lipids Keyword: HM60881

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