Check your understanding. What did you include in your answer?A cell membrane, seen in plant and animal cells, is selectively permeable and made of a phospholipid bilayer.The cell membrane and cell wall control what enters and leaves the cell.The cell wall is seen in a plant cell, gives shape to the cell, and stores carbohydrates.The cell wall is selectively permeable and made of cellulose, which causes plants to have a rigid structure.