| A | B |
|---|
| one or more sugar molecules | carbohydrates |
| living things are made of one or more cells; the cell is the smallest unit of life; new cells comes from preexisting cells | cell theory |
| large macromolecule that does not dissolve in water | lipid |
| substance that forms by joining many small molecules | macromolecule |
| macromolecule that forms when a long chain of nucleotides join together | nucleic acid |
| long chain of amino acid molecules | protein |
| explanation based on scientific knowledge resulting from several observations and experiments | theory |
