Which Structure Encloses the Cells of the Human Body

Question

Which structure encloses the cells of the human body?
A)​a carbon shell
B)an electron cluster
C)microvilli
D)a plasma membrane
E)​a protective protein sheath

Accepted Answer

The plasma membrane encloses the cells of the human body, separating their internal environment from the external environment. It is composed of lipids and proteins and plays a crucial role in controlling what enters and exits the cell.