Specialised cells.

Sperm cell

The sperm cell is very small and has a tail which provides movement so it can swim and find the egg. Its head contains enzymes which allow it to break into the egg cell so that fertilisation can happen. It contains the genetic information from the father.

Egg cell

The egg cell is large and contains yolk which is the food store needed for development of the young organism. It contains the mother's genetic information.

Palisade cell

The palisade cell is packed with chloroplasts which areneeded for photosynthesis so the plant can make its own food.

Cilia cell

The cilia cell is found in the lungs. It has tiny hairs which move dust and mucus from the lungs to clean them.

Root hair cell

The root hair cell helps to absorb water and minerals from the soil. It does this by increasing the surface area of the root. It has a really thin cell wall to help the water to enter.

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