| A | B |
|---|
| Acid | Any substance that increases the H ion concentration of a solution |
| Atom | Smallest particle of an element that retains the properties of that elements |
| Base | Any substance that decreases the H ion concentrations of a solution |
| Buffer | Substance that minimizes changes in the body fluids |
| carbohydrate | organic compound containing carbon, hydrogen, and oxygen |
| Covalent bond | Chemical bond formed when atoms share electrons |
| Electrolyte | Substance that dissociates in solution to form ions |
| Element | Substance that cannot be broken down into two or more different substances |
| Enzymes | Largest group of proteins |
| Ion | Atom that has become electrically cahrged by the loss or gain of electrons |
| Ionic bond | Chemical bond formed when an atom donates an electron to an other atom |
| lipid | Water-insoluble organic biomolecule; fat and fatlike compounds |
| nucleic acid | polymer of nucleotides htat make up DNA and RNA |
| Protein | Ogranic compound composed of amino acids |
