The document compares and contrasts sperm and egg cells, describing their structures and functions. Sperm cells have a tail for mobility, an energy structure, enzymes in their head, and half the normal chromosomes. Egg cells are larger with stored food, also containing half the normal chromosomes. Sperm cells fertilize eggs, and both cell types are produced in adult males and females respectively.

1. EGGS AND SPERM
Cut the diagram of a sperm cell and an egg cell out and stick it in your book.
Then try these questions:
1. What are the structures labelled A to F?
2. List the main differences you can see between the two cells.
3. Explain the following special features...
The sperm has a tail.
The sperm has an energy producing structure.
The egg cell has a lot of cytoplasm with stored food in it.
The sperm has a packet of enzymes at the top of its head.
The sperm has an oval head.
Each cell contains half a normal set of chromosomes.
4. Describe the job that each cell does.

2. 5. Where is each cell made?
6. When are each cell made?