Question

James was observing cells under a microscope. He observed some cells which had a layer outside the plasma membrane. What is this layer called?

Answer 1

This layer is called a cell wall.

Answer 2

The answer is letter A. Plasma membrane. The plasma membrane is the outer membrane that divides the interior cells and the outer cells. The plasma membrane protects the cell from its surroundings. The plasma membrane contains phospholipids that contains protein.