Cells

1. A jelly-like substance which cells contain, and where chemical reactions take place.
4. A green substance which is required for photosynthesis.
10. [5,4] Another name for 'neuron'.
11. [7,7] Another name for early lenses.
12. [5,4] Thin glass slide used for covering samples.
13. Small hairs on the outside of some cells.
14. [6,4] Cells which allow movement and relaxation.
15. A device which magnifies very small objects so they are visible.
16. An organism made of only one cell.

2. Structures in the Cytoplasm of cells where respiration occurs.
3. A living thing.
5. [5,4] Cell which is used for reproduction.
6. The component of the cell which contains DNA.
7. Tiny building blocks make the structure of all living things.
8. [4,8] A thin layer which surrounds a cell, which controls what goes in and out.
9. A group of cells working together to perform a particular task.