Lipids and Their Types · Zoology

The amphipathic nature of phospholipids is due to:

  1. Only nonpolar hydrocarbon chains throughout
  2. Only hydrophilic polar head groups
  3. Having both polar and nonpolar regions
  4. Covalent bonding with membrane proteins
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Correct answer: Having both polar and nonpolar regions

Phospholipids are amphipathic: they have a hydrophilic (polar) phosphate head group and two hydrophobic (nonpolar) fatty acid tails. This dual character allows them to self-assemble into bilayers in aqueous environments, with tails shielded from water and heads exposed to it.

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