Unit 1 Chemistry Vocabulary Review 14 Words Reactant

Unit 1 “Chemistry” Vocabulary Review 14 Words

Reactant Substance that exists before a chemical reaction starts; located on the LEFT side of the arrow in a chemical equation.

Product Substance formed by a chemical reaction; Located on the RIGHT side of the arrow in a chemical equation.

Catalyst Substance that speeds up a chemical reaction by reducing the activation energy.

Enzyme Protein that speeds up a biological reaction by lowering the activation energy needed to start the reaction.

Active Site Specific place where a substrate binds on an enzyme.

Activation Energy Minimum amount of energy needed for reactants to form products in a chemical reaction.

Solvent Substance in which another substance is dissolved.

Solute Substance dissolved in a solvent.

Acid Substance that releases hydrogen ions when dissolved in water; a p. H less than 7

Base Substance that releases hydroxide ions when dissolved in water; p. H greater than 7.

Carbohydrate Organic compound containing carbon, hydrogen, and oxygen in a ratio of 1: 2: 1. Provides immediate energy.

Lipid Hydrophobic biological molecule composed mostly of carbon & hydrogen; fats, oils, and waxes are lipids; stores energy

Protein Organic compound made of amino acids joined by peptide bonds; primary building block of organisms.

Nucleic Acid Complex macromolecule that stores and communicates genetic information.

You need to study for your EOCT! These words could be on that test! YOU CAN DO IT! The End