Question

question 4
__________ are the major lipids of plasma membranes.
phospholipids
fatty acids
steroids
triglycerides

Explanation:

Plasma membranes are composed mainly of phospholipids which form a bilayer structure. Fatty acids are components of some lipids but not the major lipid of plasma - membranes. Steroids like cholesterol are present in plasma membranes but in lesser amounts compared to phospholipids. Triglycerides are mainly energy - storage molecules and not major components of plasma membranes.

Answer:

Phospholipids