COVERING all plant organs.It is MADE up of cellulose, hemicelluloses, and pectin.Functions of the cell wall in the plant:Regulates and controls the direction of cell growth.Providing strength, STRUCTURAL support, and maintaining the shape of the cell.It SUPPORTS the entry of smaller molecules MOVING freely. Cell Membrane is present in all organisms including plants.It is also known as the plasma membrane.It is a semi-permeable membrane composed of lipids and proteins.