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