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Cell wall (plant) A thick, rigid membrane that surrounds a plant cell. This layer of cellulose fiber gives the cell most of its support and structure. The cell wall also bonds with other cell walls to form the structure of the plant. Chlorophyll (plant) The green pigment in the leaves and stems of plants that is necessary for the production of plant food by photosynthesis. Chloroplast (plant) An elongated or disc-shaped organelle containing chlorophyll.
Structures Found Only in Plant (and Some Algae and Fungal) Cells Now, we move on to the fun stuff that you only wish you had in your cells. It's okay to be jealous. Cell Wall Like the cell walls in bacteria, fungi, algae, and some archaea, plant cell walls are found just outside the plasma membrane and provide the cells structure and protection. The Cell Wall: Not Yours. The cell wall prevents plant cells from bursting (lysing) when too much water moves into the cell across the membrane. As water pushes against the cell wall from the inside, plant cells become large and firm because pressure, known as turgor pressure, builds up against the inside of the cell wall.