Homework Assignment
Theme: Homeostasis
Use the graphs located on the right to answer the following questions:
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At what pH do the following enzymes work best?
Sucrase:
Trypsin:
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Where in the digestive system, do you think, the following
enzymes function? (Hint: Consider their optimum pH)
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Pepsin:
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Pancreatic Lipase:
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Sucrase:
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Trypsin:
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Enzymes end in -ASE or -IN. What substances do you
Think the following enzymes break down?
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Nuclease:
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Sucrase:
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Lipase:
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Pepsin:
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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?
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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