HBS STUDY EXAM QUESTIONS WITH COMPLETE SOLUTIONS

chemical reaction correct answer: reactants turn into products reactants correct answer: the molecules that are used and changed in a reaction products correct answer: Chemical substances formed as a result of a chemical reaction. They are always located on the right of the reaction activation energy correct answer: The minimum amount of energy needed to start a reaction catalyst (give an example) correct answer: A substance that speeds up the rate of a chemical reaction. (Enzymes) enzyme correct answer: A protein that acts as a biological catalyst to speed up reactions by lowering the activation energy substrate correct answer: The reactant molecule that an enzyme binds to and changes active site correct answer: The location in between the substrate and the enzyme "lock and key" allosteric site correct answer: A specific receptor site on an enzyme that is not the active site enzyme substrate complex correct answer: what an enzyme and its substrate bonds competitive inhibitor correct answer: reduces the activity of an enzyme by binding to the active site and place of the substrate (mimics structure) non competitive inhibitor (allosteric inhibitor) correct answer: reduces the activity of an enzyme by binding to the enzyme at a location that is not the active site to CHANGE the shape of the enzyme so the enzyme cannot find to its correct substrate reversible inhibition correct answer: enzyme inhibition that can be reversed. inhibitor is attached to the enzyme by weak bonds which can be broken to remove inhibitor irreversible inhibition correct answer: enzyme inhibition that cannot be reversed since the inhibitor is attached to the enzyme by strong bonds that cannot be broken so enzyme function is never restored. (permanently inactivated) Feedback inhibition correct answer: when the end product of a reaction acts as the enzyme inhibitor (turns off)