Revision of Cells

4. The protective insulating layer around the axon of a neurone
5. Optical instrument used to magnify objects
7. swollen - such as when a plant cell has absorbed a large amount of water
9. Damage caused to a plant cell by extreme water loss. The cell contents become detached from the cell wall.
10. A sub-cellular structure where protein synthesis occurs
11. Contains cell sap and helps to keep a plant cell firm
12. A sub-cellular structure where respiration occurs
13. 'Jelly-like' substance inside cells where most chemical reactions take place
14. The part of the blood which carries dissolved substances such as glucose, carbon dioxide and urea
16. cells with a nucleus
17. cells without a nucleus or other membrane-bound organelles

1. an undifferentiated cell
2. The process by which cells acquire specialised features, especially during embryonic development.
3. a single-celled organism without a nucleus
6. a cell specialised to carry oxygen
8. a type of cell whose shape and structure enable it to perform a particular function
9. A type of plant cell specialised for photosynthesis
15. The electrically conducting part of a nerve cell