Multiple choice

Plasma membrane is made up of

  1. lipid

  2. protein

  3. phospholipids

  4. lipoprotein
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The plasma membrane is composed of a phospholipid bilayer, which is two layers of phospholipids back-to-back. Phospholipids are lipids with a phosphate group attached to them. The phospholipids have one head and two tails. The head is polar and hydrophilic, or water-loving.

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