Correct: Enzymes are specific, Enzymes can be reused, Enzymes are made of proteins, Enzymes have an active site, Catalase is an enzyme, pH and temperature affect enzyme activity, Enzymes denature when it is too hot, Enzymes denature when the pH is too high or too low, Enzyme activity is greatest in optimum conditions, Enzymes speed up chemical reactions, Enzymes lower activation energy, Enzymes are biological catalysts, Incorrect: Enzymes are non-specific, Enzymes can only be used once, Enzymes are made of DNA, Substrates have an active site, Amylase isn't an enzyme, Enzymes denature when it is too cold, Enzymes denature at the optimum pH, All enzymes break down all substrates, Enzyme activity is lowest in optimum conditions, Enzymes slow down chemical reactions, Enzymes increase activation energy, Enzymes are not found in the human body,

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