| A | B |
|---|
| cell membrane | a phospholipid layer that covers a cell's surface and acts as a barrier between the inside of a cell and the cell's environment |
| organelles | structures within a cell, sometimes surrounded by a membrane |
| cytoplasm | cellular fluid surrounding a cell's organelles |
| nucleus | membrane-covered organelle found in eukaryotic cells that contains a cell's DNA and serves as the control center for the cell |
| prokaryotic | describes a cell that does not have a nucleus or any other membrane-covered organelles; also called bacteria |
| eukaryotic | describes a cell that has a nucleus |
| bacteria | extremely small single-celled organisms without a nucleus; prokaryotic cells. |
| cell | a membrane covered structure that contains all of the materials necessary for life |
