A sperm is small and has a long tail that provides movement so it can swim and find an egg cell. The head contains enzymes which allow it to digest into an egg cell and join with it.
PALISADE CELL
designed for photosynthesis
found in the top of a leaf
has a large surface area to absorb light efficiently
packed with chloroplasts to help make plant food.
CILIATED EPITHELIAL CELL
designed to stop lung damage
they line all the air passages in the lungs.
they have tiny hairs called cilia.
hairs sweep mucus with trapped dust and bacteria back up to the throat.
ROOT HAIR CELL
Designed for absorbing.
Thin cell wall makes it easy for minerals to pass through.
Has a large surface which helps it to absorb water and minerals.
NERVE CELL (NEURON)
They are long.
They have connections at each end.
Can carry electrical signals.
Their job is to carry nerve impulses to different parts of the body.