Plant cells are the basic building blocks of all plants, characterized by their unique structures that enable them to perform photosynthesis. Unlike animal cells, plant cells have a rigid cell wall made of cellulose, which provides support and protection. They also contain chloroplasts, the organelles responsible for converting sunlight into energy, allowing plants to produce their own food. In addition to chloroplasts, plant cells have large central vacuoles that store water, nutrients, and waste products. This vacuole helps maintain turgor pressure, which is essential for keeping the plant upright. Overall, plant cells play a crucial role in the growth and survival of plants in various environments.