Cells

2. Membrane A protective covering that encloses the entire cell.
4. All individual forms of life that use energy to carry out the activities of life.
5. Cell A type of cell lacking a nucleus and organelles. Bacteria are an example of prokaryotes.
7. The gelatinlike fluid within the cell membrane where most of the work of the cell is carried out.
8. Different tissues that work together to perform a particular function
9. Wall A tough outer covering that lies just outside the cell membrane in a plant cell.
14. Contains DNA—is the control center of the cell.
15. Organisms that are one single cell
16. Organisms that are made up of many cells. These organisms are most of the life forms you can see.

1. An instrument that uses glass lenses to magnify an object.
3. An organelle that releases stored energy, which comes mostly from sugars
6. These organisms are usually too small for you to see directly.
7. An organelle in a plant cell that uses the energy from sunlight to make sugar.
10. Cell In this, the DNA is kept in the nucleus, which is enclosed by its own membrane.
11. Scientists use this word for any part of a cell enclosed by a membrane. The mitochondria and chloroplasts are examples of this.
12. A group of similar cells that are organized to do a specific job
13. When a cell and its organelles are organized to allow it to do a specific job.