Question

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catalysts lactase and carbonic anhydrase are examples of what type of substance? enzyme reactant product substrate

Explanation:

Lactase and carbonic anhydrase are enzymes. Enzymes are biological catalysts that speed up chemical reactions. Reactants are substances that undergo a reaction, products are the result of a reaction, and substrates are the specific reactants an enzyme acts on. So the correct option is the one labeled "enzyme".

Answer:

enzyme (the option with the label "enzyme")