- Specialised Cells
- Cells may be specialised to carry out a particular job/ function. When a cell becomes specialised, its structure is adapted to suit the particular job it does.
- Fat cells
- If you eat more food than you need, your body makes fat and stores it in fat cells which help us to survive when food is in short supply. Fat cells have several adaptations: A small amount of cytoplasm and large amounts of fat. They have few mitochondria as the cell needs little energy, and they can expand massively.
- Sperm Cells have several adaptations: A long tail to help the sperm move towards the egg, the middle section is full of mitochondria which provide energy, the acrosome (top) stores digestive enzymes for breaking down layers of the egg, and a large nucleus contains the genetic information to be passed on.
- Root hair cells are used for plants to take up water more effectively. They have two main adaptations: The root hairs increase the surface area for water to move into the cell and the root hair cells have a large permanent vacuole that speeds up the movement of water from the soil across the root hair cell.