Question

The membranes of cells are made up of mainly:

phospholipids


proteins


cholesterol


carbohydrates

Answer 1

Proteins

Step-by-step explanation:

Cell membranes are composed of proteins and lipids. Since they are made up of mostly lipids, only certain substances can move through. Phospholipids are the most abundant type of lipid found in the membrane. Phospholipids are made up of two layers, the outer and inner layers.