The document compares and contrasts plant and animal cells. It notes that plant cells have a cell wall made of cellulose surrounding the cell membrane that animal cells lack. The cell wall provides structure and allows exchange of materials between plant cells. It also describes chloroplasts, which contain chlorophyll and allow plants to perform photosynthesis, converting sunlight into sugars. Other plastids like chromoplasts and leucoplasts store pigments or starches. Plant cells contain a central vacuole for storage of water, sugars, and minerals used by the cell.