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1. WHAT ARE ENZYMES AND SUBSTRATE?Enzymes are catalysts for
chemical reactions in living things.Substrates are specific
reactants that an enzyme acts on.
2. LAB PROCEDURESteps for Lab1. Set up test-tubes2. Put
different amounts of H202 and water3. Record the reaction -Enzymes
Source: Catylase in potato -Substrate Source: H2O2 -Independent
Variable: Amounts of H2O2 -Control: Potato
3. LAB VIDEO
4. LAB RESULTSTest tubeRank of Amount ofAmount ofnumber
reactionpotato reactants speed12nd 0.32 lbH202 15ml21st 0.32 lbH2O2
30ml33rd 0.32 lbH2O 30mlConclusion:The amount of reactants affect
enzyme rate.The more reactants are, the quicker it react.