Mr. DeRosa's Science Class

  • HOME

  •  

    A website for Biology students

    .

    • HOME

    •  

      Need Help?

      Let's Talk

      Homework Assignment

       

       

       

                                                                                        

      Theme:  Homeostasis

       

      Use the graphs located on the right to answer the following questions:

       

      • At what pH do the following enzymes work best?

        Sucrase:

        Trypsin:

       

      • Where in the digestive system, do you think, the following

      enzymes function? (Hint: Consider their optimum pH)

      • Pepsin:

      • Pancreatic Lipase:

      • Sucrase:

      • Trypsin:

       

      • Enzymes end in -ASE or -IN.  What substances do you

      Think the following enzymes break down?

      • Nuclease:

      • Sucrase:

      • Lipase:

      • Pepsin:

       

      • Predict the reactivity of trypsin at pH 14. (Hint: Look at diagram B)

      _______________________________________________

      _______________________________________________

       

       

      • What is the optimal temperature for the enzyme in graph C?

       

       

      Where does the enzyme in graph C most likely function?

       

       

       

      • Using graph C:

        Explain what happens when hypothermia sets in

             (when enzymes get too cold!) Be specific.

      _______________________________________________

      _______________________________________________

      _______________________________________________

      _______________________________________________

      _______________________________________________

      _______________________________________________

       

      • Does the same thing happen when enzymes get too

             hot?  Why or why not? Be specific.

      _______________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

       

      • Explain why graph D levels off.  Use enzyme and substrate in your explanation.  Then tell how you could prevent graph D from leveling off.

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

      _______________________________________________________________________________________

       

       

      • Why doesn’t it matter if enzymes keep getting added to graph E?  What would it take to increase the rate of enzyme activity?

      ______________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

      _____________________________________________________________

       

       

       

      Enzyme Structure Worksheet                                                      Theme:  Structure Meets Function

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

       

      In the diagram  diagram label:  enzyme, substrate, active site, product

       

      Printer Friendly Version