| Term | Definition |
| acid | compounds that release H+ ions in aqueous solutions |
| atom | basic unit of matter |
| atomic number | number of protons and number of neutrons in the nucleus of an atom |
| atomic number | number of protons in the nucleus of an atom |
| base | compounds that accept H+ ions in an aqueous solution |
| buffer | these work to precent sudden change in pH |
| chemical bond | how atoms interact with each other |
| chemical reaction | any process in which a chemical change occurs |
| compound | formed from 2 or more elements chemically combined in a fixed ration |
| covalent bond | formed from the sharing of electrons |
| element | simplest type of matter |
| ion | atom that gained or lost electrons |
| ionic bond | formed from the transfer of electrons |
| isotope | form of an atom with the same number of protons but different number of neutrons |
| mass | amount of matter in something |
| matter | anything that has mass and volume |
| mixture | substance composed of 2 or more types of matter not chemically combined |
| molecule | formed from 2 or more atoms covalently bonded |
| solute | what is dissolved in a solution |
| solution | uniform mixture of 2 or more substances |
| solvent | what does the dissolving in a solution |
| suspension | mixture water and undissolved materials |
| volume | amount of space something occupies |
| equation and solution | what are the 2 parts of a chemical equation |
| list the 3 physical states of matter | gas liquid solid |
| what is the outside ring of and atom contain | energy level and electrons |
| what is in the middle of an atom | nucleus and contains protons and neutrons |
| amino acids | components of proteins |
| carbohydrates | lame of C, H and O; sugars |
| dehydration synthesis | the releasing of water molecules when monomers are added in chains |
| disaccharides | C12, H22, O11 |
| enzymes | biological catalysts |
| glucose | main "fuel" supply for cellular work |
| hydrolysis reaction | the adding of water to a polymer to break it into monomers |
| inorganic compound | compounds that do not contain C |
| lipids | fats and oils |
| monomer | small molecules |
| monosacchrides | simple sugars |
| nucleic acids | DNA and RNA |
| nucleotides | components of nucleic acids |
| organic compounds | compounds containing C-C |
| polymer | large molecules |
| polymerization | process of constructing large molecules by joining smaller ones |
| proteins | most important molecules made by cells |
| steroids | a type of lipid in which the C skeleton forms 4 fused rings |
| substrate | molecules enzymes bind to |
| list the 4 macromolecules to life | proteins, lipids, carbohydrates, and nucleic acids |
| mass and volume | 2 most important physical properties of matter |
| atom | smallest part of a molecule |
| amino acids | proteins are made out of what |
| cohesion | attraction between molecules of the same substance |
| adhesion | attraction between molecules of different substances |
| saturated lipids | all single bonds between atoms |
| unsaturated lipids | 1 C-C double bond |
| polyunsaturated lipids | 2 or more C-C double bonds in the molecule |