Multiple choice

In biological membrane, integral proteins and lipids interact mainly by

  1. Covalent bond

  2. Hydrophobic interaction

  3. Hydrogen bond

  4. Van der Waals force

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

Integral membrane proteins have one or more segments that are embedded in the phospholipid bilayer. Most integral proteins contain residues with hydrophobic side chains that interact with fatty acyl groups of the membrane phospholipids by hydrophobic interactions and thus, anchoring the protein to the membrane.