Question

multiple choice question
____ are the main component of all cell membranes.
○ triglycerides
○ steroids
○ lipoproteins
○ phospholipids

Explanation:

Cell membranes are composed of a phospholipid - bilayer. Phospholipids have a hydrophilic head and hydrophobic tails, which arrange themselves to form the basic structure of the cell membrane. Triglycerides are energy - storage molecules, steroids have various functions like hormone production, and lipoproteins are involved in lipid transport.

Answer:

Phospholipids