Final answer:
Specialized plant cells include parenchyma cells for photosynthesis and storage, collenchyma cells for support in growth regions, and sclerenchyma cells for rigidity in mature areas.
Step-by-step explanation:
Three types of specialized plant cells and their unique functions are:
- Parenchyma cells: They are the most common type of plant cell, known for their ability to carry out photosynthesis due to the presence of chloroplasts. They are also involved in the storage of starch, oils, and water, and play a role in healing and tissue regeneration.
- Collenchyma cells: These cells provide support and structure to the plant, particularly in regions of growth. They have thicker cell walls compared to parenchyma cells and are often found under the epidermis or the outer layer of stems and leaves.
- Sclerenchyma cells: Sclerenchyma cells are specialized for support with cell walls that are thick and hard due to lignin. They are found throughout the plant and are important in areas that are no longer growing. They provide rigidity and strength to the plant structure.