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)

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  • 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.

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  • Does the same thing happen when enzymes get too

       hot?  Why or why not? Be specific.

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

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

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Enzyme Structure Worksheet                                                      Theme:  Structure Meets Function

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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