The outer surrounding layer of a plant cell is called the cell wall, while the outer surrounding layer of an animal cell is called the cell membrane (also known as the plasma membrane).

Here's a breakdown:

Plant Cell:

* Cell Wall: A rigid, protective layer made primarily of cellulose that provides structural support and protection. It helps maintain the cell's shape and prevents bursting due to water pressure.

Animal Cell:

* Cell Membrane: A thin, flexible layer made of phospholipids and proteins that regulates what enters and exits the cell. It's selectively permeable, meaning it controls the movement of substances across it.

Let me know if you have any other questions!