Cell Theory

4. thin, flexible barrier that surrounds all cells
6. in eukaryotic cells, all cellular contents outside the nucleus, in prokaryotic cells, all of the cells' contents
7. organism whose cells contain a nucleus
8. structure in an animal cell that helps to organize cell division
11. in cells, structure that contains the cells genetic information
12. basic unit of all forms of life

1. strong, supporting layer around the cell membrane in some cells
2. cell organelle that stores materials such as water, salts, proteins, and carbohydrates
3. fundamental concept of biology that states all living things are composed of cells
4. network of protein filaments in a eukaryotic cell that gives the cell its shape and internal organization and is involved in movement
5. organism whose cells do not contain a nucleus
6. organelle found in cells of plants and some other organisms that captures the energy from sunlight and convert it into chemical energy
9. cell organelle consisting of RNA and protein found throughout the cytoplasm in a cell; the site of protein synthesis
10. specialized structure that performs important cellular functions