Question

1. which type of lipid makes up cell membranes? fatty acids steroids triglycerides phospholipids

Explanation:

Cell membranes are composed of a phospholipid - bilayer. Phospholipids have a hydrophilic head and hydrophobic tails, which allow them to form a stable barrier for the cell. Fatty acids are components of some lipids but not the main lipid in cell membranes. Steroids like cholesterol are present in cell membranes in smaller amounts for fluidity regulation but are not the main component. Triglycerides are energy - storage molecules and not the main lipid of cell membranes.

Answer:

phospholipids