Atom or molecule that has lost or gained one or more electrons.
Smallest unit of matter that cannot be broken down by chemical means
A substance made of the joined atoms of two or more different elements
A group of atoms held together by covalent bonds.
Chemical bond in which elements are shared
Attraction between oppositely charged ions
A substance made of only one type of element.
One substance evenly distributed in another
A substance on which an enzyme acts during a chemical reaction
Organic compound made up of carbon, hydrogen, and oxygen; used by living things as an energy source.
Simple sugar that is a major source of energy in cells
An organic compound that is not soluble in water
A long chain of amino acids
Subunits of DNA and RNA
Where hereditary information is stored
Substance that speeds up chemical reaction. (all enzymes are made up of PROTEINS!)
The location on an enzyme that binds to a substrate.
Ability to move or change matter.
Nucleic acid that is involved in protein synthesis
Organic molecules that act as a source of energy in cells.
Compounds that form hydrogen ions when dissolved in water.
Compounds that reduce the concentration of hydrogen ions when dissolved in water
Attraction between substances of the same kind.
Attraction between different substances
Organic molecule that acts as the main energy currency of the cells.
Energy needed to start a chemical reaction