Plants contain cells of many shapes and sizes. Each cell is specialised to carry out different a function within the cell. Examples of specialised cells in plants are: • Guard cells – found on leaves and close tiny pores on the leaves to trap in moisture. • Conducting cells – Transports water throughout the plant. • Structural cells – Acts as the skeleton of the plant. When plants grow they become bigger and heavier. Animals are more complex than plants and they have a greater variety of different cell types to carry out different functions. Examples of specialised cells in animals include: • Muscle cells – contains large amounts of mitochondria to make enough energy to move. • Nerve cells – Carry information in the form of electricity around the body rapidly. • Red blood cells – Carry oxygen around your body to the cells that need it.