Question

Unlike the cell wall,the cell membrane_____

is made of chromatin

produces energy for the cell

is a rigid layer of cellulose

is found in all cells

Answer 1

Unlike the cell wall, the cell membrane **is found in all cells**.

The other options provided are not correct because:

- The cell membrane is not made of chromatin; it is primarily composed of a lipid bilayer with embedded proteins.
- The cell membrane does not produce energy; energy production occurs in organelles like mitochondria.
- The cell wall is a rigid structure (often made of cellulose in plants), while the cell membrane is generally flexible and not rigid.