| A | B |
|---|
| organic compound | molecules consisting of carbon-carbon bonds |
| macromolecule | large molecule usually composed of smaller, repeating units |
| carbohydrate | macromolecule composed of simple sugars (monosaccharides) |
| lipid | organic molecules that are used for energy storage and cell membrane structure |
| protein | macromolecule composed of amino acid building blocks |
| enzyme | protein that controls chemical reactions |
| nucleic acid | macromolecule composed of nucleotide building blocks |
| amino acid | the building blocks of proteins |
| DNA | nucleic acid which holds the codes for amino acid sequences of proteins |
| atom | basic unit of matter |
| element | substance that only has one type of atom (examples: C, H, O, N, P, S) |
| electron | negatively charged subatomic particle found outside the nucleus of an atom |
| ion | charged particle resulting from a gain or loss of electrons |
| chemical bond | force which holds atoms or ions together |
| covalent bond | chemical bond in which atoms share electrons |
| molecule | a group of atoms held together by chemical bonds |
| Mr. Mohn | the meanest teacher in the world for making us learn all of these terms |
| proton | positively charged subatomic particle found in the nucleus of an atom |
| neutron | a subatomic particle found in the nucleus of an atom that does not have a charge |
| ionic bond | chemical bond that involves a transfer of electrons |
| hydrogen bond | a type of chemical bond that involves weak interactions between an atom of a molecule and a neighboring atom that is already taking part in a covalent bond |
| atomic number | the number of protons in the nucleus of an atom |
| mass number | the number of protons plus the number of neutrons in the nucleus of an atom |
| matter | anything that has mass and volume |
| isotope | an atom of an element that has a different number of neutrons than other atoms of the same element |
