Question

Which of the following makes up a cell membrane?

a) Phosphate, glycerol, and 2 fatty acid chains
b) Phosphate, amino acids, and 2 fatty acid chains
c) Phosphate, saccharides, and 2 fatty acid chains
d) Glycerol, 2 fatty acid chains, and amino acid

Answer 1

The cell membrane is made up of phospholipids with fatty acid chains and a glycerol backbone.

Step-by-step explanation:

The cell membrane is made up of phospholipids. Each phospholipid consists of a pair of fatty acid chains attached to a glycerol backbone.

Additionally, the phospholipid has a phosphate group attached to the glycerol.

The hydrophilic phosphate ends of the phospholipids face the outer and inner surfaces of the cell membrane, while the hydrophobic fatty acid chains are in the middle.