| A | B |
|---|
| Electron | a subatomic particle with a negative charge and a relatively small mass |
| Atom | basic unit of matter |
| lipids | fats and oils |
| DNA | deoxyribonucleic acid (includes instructions) |
| phospholipids | a structural substance found in cell membranes. |
| RNA | ribonucleic acid |
| nucleic acids | large complex molecules that contain hereditary information |
| Neutron | a subatomic particle located in the nucleus with the same mass as a proton and no charge |
| ionic bonds | electrons are lost by one element and gained by another |
| pH | p=power, H=hydrogenism |
| proton | a subatomic particle with a possitive charge and a relatively large mass |
| enzymes | substance that causes a reaction to speed up or slow down without being changed itself |
| cohesion | "sticking together" |
| Base | a compound that produces hydroxide ions in water |
| Acid | a compound that releases hrogen ions in water |
| glycogen | manufactured and stored in liver and muscles |
| solution | an uniform mixture of two or more substnces |
| solvent | the dissolving substance |
| solute | dissolved substance |
| metabolism | the combination of all chamical changes that take place in an organism |
