What are the contrasts between a cell wall and a plasma membrane?

The plasma membrane, also
known as the cell membrane, is a bilipid membrane with protein molecules embedded in
between. The membrane encloses the cytoplasm and all the cellular organelles and is the
barrier between inside the cell and its surrounding environment. It is selectively
permeable in that certain molecules can pass through the plasma membrane if there is a
concentration gradient on either side of the membrane, and if the molecules are small
enough to be transported across. The plasma membrane is found in all
cells. However, a cell wall is found in
plant cells and is composed of cellulose material. Cellulose is a polysaccharide. It is
nonliving. Its function is to protect and act as a structural support for the plant
cell.