Final answer:
The types of cellular projections found in cells are cilia, flagella, and microvilli. Each type has a specific function that aids in the overall function of the cell.
Step-by-step explanation:
The types of cellular projections, also known as extensions, found in cells are:
- Cilia: These are short, hair-like projections that cover the surface of cells. They are involved in the movement of materials across the cell surface. For example, cilia in the respiratory tract help move mucus and trapped particles out of the lungs.
- Flagella: These are long, whip-like projections that help with cell movement. For instance, flagella in sperm cells enable them to swim towards the egg for fertilization.
- Microvilli: These are tiny, finger-like projections that increase the surface area of certain cells, such as intestinal cells. The increased surface area allows for better absorption of nutrients.
Each type of cellular projection has a specific function that aids in the overall function of the cell.