| A | B |
|---|
| Cell Membrane | Separates the cell's contents from materials outside of the cell |
| Ribosomes | structures on which proteins are made |
| Prokaryotic | single-celled organisms that lack membrane-bound organelles |
| Nucleus | Membrane-bound compartment that houses the cells DNA |
| Element | A substance that cannot be broken down |
| Compound | A group of atoms held together by chemical bounds |
| Hydrogen Bond | Weak chemical that forms between two polar molecules |
| Base | Any substance that ionizes to form hydroxide ions when dissolved in water |
| Acid | Any substance that ionizes to form hydrogen ions in dissolved in water. |
| DNA | Nucleic acid that store genetic information in cells |
