Matching Pairs Enzyme Match-UpOnline version Test your knowledge of enzymes by matching concepts with their descriptions in this fun game! by PP 1 Catalyst 2 Enzyme Inhibition 3 Coenzyme 4 Substrate 5 Optimal pH 6 Specificity 7 Denaturation 8 Active Site Process of slowing down or stopping enzyme activity pH at which enzyme activity is highest Speeds up chemical reactions Loss of enzyme's shape and function due to extreme conditions Molecule acted upon by an enzyme Organic molecule assisting enzyme function Enzyme's ability to target particular substrates Region of an enzyme where substrate binds