Which of the following describes the cell membrane?

Question

Responses

It is made up of purely proteins, and most of them are arranged in a trilayer.
It is made up of purely proteins, and most of them are arranged in a trilayer.

It is a single layer of carbo-lipids.
It is a single layer of carbo-lipids.

It is made up of purely cholesterol, which means cholesterol is a healthy dietary molecule.
It is made up of purely cholesterol, which means cholesterol is a healthy dietary molecule.

It is a double layer of phospholipids

Answer 1

The correct description of the cell membrane is:

It is a double layer of phospholipids.

The cell membrane, also known as the plasma membrane, primarily consists of a phospholipid bilayer with embedded proteins, cholesterol, and carbohydrates. This structure helps to maintain the integrity of the cell and regulates the movement of substances in and out of the cell.