| A | B |
|---|
| Cell Theory | the 3-part theory that defines and describes cells |
| Part 1 of Cell Theory | States that cells are the basic unit of structure and function in organisms |
| Part 2 of Cell Theory | States that all living things are made of one or more cells |
| Part 3 of Cell Theory | States that all cells come from preexisting cells |
| multicellular | made of many cells |
| unicellular | made of one cell |
| plasma membrane | a thin, flexible boundary between a cell and its environment that is responsible for homeostasis in a cell |
| cytoplasm | a gooey liquid that fills the cell and acts as support |
| ribosomes | small organelle made mostly from RNA that makes proteins |
| organelle | a small, specialized structure inside a cell |
| prokaryotic cell | cells that do not have a nucleus or any other large organelles |
| eukaryotic cell | have a nucleus and contain membrane-bound organelles |
