5 Written Questions
5 Matching Questions
- a organic compound made of amino acids joined by peptide bonds; primary building block of organisms.
- b two or more atoms of the same element having different numbers of neutrons.
- c compound whose atoms are held together by covalent bonds
- d substance that exists before a chemical reaction starts; located on the left side of the arrow in a chemical reaction.
- e substance formed by a chemical reaction; located on the right side of the arrow in a chemical equation.
5 Multiple Choice Questions
- carbon compound joined by peptide bonds; building block of proteins.
- a subunit of nucleic acid formed from a single sugar, a phosphate group, and a nitrogenous base.
- substance dissolved in a solvent.
- reactant to which an enzyme binds
- protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction
5 True/False Questions
active site → carbon compound joined by peptide bonds; building block of proteins.
solvent → pure substance composed of only one type of atom; cannot be broken down into another substance by physical or chemical means
neutron → particle without a charge in an atom's nucleus
mixture → 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).
electron → negatively charged particle that occupies space around an atom's nucleus.