Multiple choice

Which of the following is a major constituents of cell membranes?

  1. Phosphatidylcholines

  2. Phosphatidylinositol

  3. Phosphatidylethanolamine

  4. Phosphatidic acids

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

Phosphatidic acids (PAs) are the acid forms of phosphatidates, a part of common phospholipids, major constituents of cell membranes. Phosphatidic acids are the simplest diacyl-glycerophospholipids.