Multiple choice

Interior of all the cells is separated from the outside environment by

  1. Cell membrane

  2. Microtubules

  3. Nucleosomes

  4. Cytosol

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The cell membrane is a biological membrane that separates the interior of all cells from the outside environment. The cell membrane is selectively-permeable to ions and organic molecules and controls the movement of substances in and out of cells. It consists of the phospholipid bilayer with embedded proteins.