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Laboratory Review 13 1. What part of an enzyme is specific for and accommodates

ID: 3164552 • Letter: L

Question

Laboratory Review 13 1. What part of an enzyme is specific for and accommodates its substrate? 2. What two environmental conditions affect the ability of an enzyme to function properly? 3. Where are carbohydrates first digested by an enzyme? -4. what organ produces the lipase and amylase that perform digestion in the small intestine? 5. What is the name given to a sample that contains the factor being tested and that goes through all the steps of the experiment? 6. Does pepsin function in an acidic or a basic pH? 7. What results from the digestion of proteins by pepsin? 8. What reagent was used to test for the digestion of proteins? 9. What molecule emulsifies fats in the small intestine? 10. What organ stores bile? 11. What component of foods is digested by pancreatic amylase? 12. What molecule is present after pancreatic amylase digests starch? 13. What two tests were done to test for starch digestion? 14. What structures absorb the products of digestion in the small intestine? Thought Questions 15. Salivary amylase digests starch to maltose in the mouth while chewing takes place. Why is it beneficial to have the enzyme that digests starch, amylase, in two different locations? 16. How would the digestion of fat be impacted by the removal of the gallbladder? Explain. 17. Explain why consuming excess antacids might affect protein digestion. How could you investigate the impact of consuming antacids on protein digestion?

Explanation / Answer

1. The active site of an enzyme is specific for and accommodates it's substrate.

2. The two environmental conditions are temperature and pH. They affect the ability of an enzyme to function properly by changing its conformation.

3. The carbohydrates are first digested in our mouth by the action of the salivary amylase (ptyalin), an carbohydrate digesting enzyme.

4. The enzyme lipase and amylase are produced by the pancreas. They perform the digestion in the small intestine.