Unit 6: Cells Review

2. The part of the blood that carries water, salts, and enzymes.
5. A bundle of fibers that send messages from the body to the brain about touch.
7. Support your body and allow you to move. Protects your organs from injury.
8. Connects muscle to bone.
13. The outer covering of the human body.
14. The powerhouse of the cell.
16. A small organelle involved in the process of making protein.
19. The smallest unit with the basic properties of life.
20. Near the center of the cell. The control center of the cell.
21. Use of radiation to take pictures of bones.
22. blood cell The part of you blood that carries oxygen.

1. The control center for the body.
3. Breaks down food particles and waste within the cell.
4. The pump that moves blood throughout the body.
6. What blood flows through from your heart to the rest of your body.
9. blood cells Protect you against illness and disease.
10. Uses radio waves to take pictures of muscles and organs.
11. Strong, flexible connective tissue that supports and protects bones.
12. Brings oxygen and other nutrients to all the parts of the body.
15. A gel-like substance that provides structure for the other organelles in a cell.
17. Move body parts by contracting and relaxing.
18. Membrane A thin but tough wall surrounding the cell.