5 Written questions
5 Matching questions
- nucleic acid
- a two or more atoms of the same element having different numbers of neutrons.
- b complex macromolecule that stores and communicates genetic information.
- c large molecule formed from smaller repeating units or identical, or nearly identical, compounds linked by covalent bonds.
- d atom that is negatively or positively charged because it have lost or gained one or more electrons.
- e measure of the concentration of hydrogen ions (H+) in a solution.
5 Multiple choice questions
- specific place where a substrate binds on an enzyme.
- energy-requiring process by which atoms or groups of atoms in substances are changed into different substances
- combination of two or more different substances in which each substance keeps its individual characteristics; can have a uniform composition (homogeneous) or have distinct areas of substances (heterogeneous).
- pure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means
- building block of matter; contains subatomic particles—neutrons, protons, and electrons
5 True/False questions
electron → particle without a charge in an atom's nucleus
compound → pure substance with unique properties; formed when two or more different elements combine.
macromolecule → large molecule formed by joining smaller organic molecules together
product → substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation.
catalyst → building block of matter; contains subatomic particles—neutrons, protons, and electrons