Question

Which of the following statements best describes the structure of the cell membrane?

A single layer of proteins surrounding a single layer of lipids
a single layer of cells surrounding cells
Two layers of phospholipids with protein molecules for channles
a chain of proteins

Answer 1

The cell membrane is a phospholipid bilayer consisting of two layers of phospholipids with hydrophobic tails facing inward and hydrophilic heads facing outward. It acts as a barrier and separates the inside of the cell from its external environment. Proteins embedded within the membrane perform various functions.

Step-by-step explanation:

The structure of the cell membrane is a phospholipid bilayer. It is composed of two layers of phospholipids with hydrophobic tails facing inward and hydrophilic heads facing outward. This bilayer provides a barrier that separates the inside of the cell from its external environment. Additionally, the cell membrane contains various proteins that are embedded within the bilayer and perform different functions.

Answer 2

The answer would be, Two layers of phospholipids with protein molecules for channels