Physiology 12 Digestion Lab , M. J. Malachowski, Ph.D

NAME __________________________________

LAB REPORT

A. Protein digestion

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1. Compare and explain the differences in results for the tubes # 2 and # 3.
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2. Should there be complete digestion of the egg white in tube # 2? What are the enzymes involved?
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B. Fat digestion.

1. What enzyme is responsible for the digestion of fats in Milk.
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2. What is the end product of digestion responsible for the color change?
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3. Compare and explain the difference in results for the tubes # 2 and # 3.
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4. What effect do bile salts have on oil? Explain the importance of bile in the digestion of fats.
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C. Starch digestion.

1. Pancreatic amylase is responsible for the digestion of starch in this experiment. In what other digestive juice is this enzyme located?
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2. What results were obtained with the Benedict's test after the tube became colorless?
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3. Why was it important to have the starch at the temperature of the water bath before adding the diatase.
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4. Did you obtain a positive test with the Benedict's solution in tube # 1, part C(2)? Explain.
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Updated 4/3/01 Miko mmalacho@ccsf.cc.ca.us