Warm-Up Answer the following questions in complete sentences. What bonds (attaches) to an enzyme at the enzyme’s active site? The _______________ binds to the enzyme at the enzyme’s active site.

UNIT 3 Catalase Lab What happens to hydrogen peroxide (H2O2) when you put it on a cut? What happens when you put it on the table? What makes H2O2 turn to O2?

Catalase Lab – Turn and Talk UNIT 3 Catalase Lab – Turn and Talk With a partner, answer all seven questions verbally. By yourself, choose three to answer on a piece of paper and turn it into the back. The person to go first is… peroxide oxygen

Catalase Lab – Turn and Talk UNIT 3 Catalase Lab – Turn and Talk The substrate in the reaction was… The enzyme in the reaction was… I knew the reaction was taking place because… The product in the reaction was… Adding water to hydrogen peroxide had no effect because… On the graph, I see the activation energy here (point). The enzyme affected the reaction by… The boiled enzyme did not change the reaction because…

Closure Answer the following question in a complete sentence: Name/Nombre Date/Fecha Period ____ Answer the following question in a complete sentence: How does an enzyme catalyze a chemical reaction? Suggested sentence stem: An enzyme catalyzes a chemical reaction by…