Science

3. difference in the concentration of molecules, cells use active transport
5. the natural compound present in green plants that gives them their color.
6. directs cells activities
8. an organelle in the cells of plants and other organisms that captures energy from sunlight and changes it to an energy form that cells can use in making food
11. allows large particles to leave a cell
14. produce proteins needed by cell
15. not able to create their own food

1. membrane a thin, flexible barrier that surrounds a cell and controls which substances go in and out
2. able to create their own food
4. a large oval organelle that contains the cells genetics
7. smallest unit of a living thing
9. breaks down food particles and worn out cell parts
10. an instrument that makes small objects look larger
12. fills the region between the cell membrane and the nucleus
13. a tiny cell structure that carries out a specific function