PEX-08-04 - Exercise 8: Chemical and Physical Processes of...

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Exercise 8: Chemical and Physical Processes of Digestion: Activity 4: Assessing Lipase Digestion of Fat Lab Report Pre-lab Quiz Results You scored 50% by answering 2 out of 4 questions correctly. 1. Which of the following is/are true of bile? Your answer : c. It is an enzyme. Correct answer: b. It works by a physical process. 2. The substrate used in this simulation is Your answer : b. bile. Correct answer: c. vegetable oil. 3. When fatty acids are liberated by lipase, the pH You correctly answered: b. decreases. 4. One of the products of the chemical digestion of lipids is You correctly answered: d. fatty acids. 11/02/11 page 1
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11/02/11 page 2 Experiment Results Predict Question: Predict Question: Which tube do you think will have the highest lipase activity? Your answer : b. tube 2 What does the pH measure? Your answer : e. both lipase activity and bile salt hydrolysis Correct answer: d. both lipase activity and fatty acid release Why is it difficult to detect whether lipase is active in tube 5? You correctly answered: d. The pH is already very low, so a decrease in pH might be difficult to detect.
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PEX-08-04 - Exercise 8: Chemical and Physical Processes of...

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