Multiple choice

Lipid molecules in plasma membrane are arranged in which manner?

  1. Scattered

  2. Series

  3. Alternate

  4. Head parallel

Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Their hydrophobic regions pass through the membrane and interact with the hydrophobic tails of the lipid molecules in the interior of the bilayer, where they are sequestered away from water. Their hydrophilic regions are exposed to water on either side of the membrane, i.e. they are arranged in the head parallel arrangement.