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Ch 7 (Sec 7.1)
Miller and Levine Biology
| Question | Answer |
|---|---|
| cells | The basic units of life.(191) |
| cell theory | states that all living things are composed of cells; that cells are the basic structure and function of living things; and that all new cells are produced from existing cells. (191) |
| cell membrane | thin, flexible barrier that surrounds all cells; controls what enters and leaves the cell. (193) |
| nucleus | structure that contains the cell's genetic material in the form of DNA (193) |
| prokaryote | single celled organism that lacks a nucleus (193) |
| eukaryote | organism whose cells contain a nucleus (193) |