a. What type of tissue found in the mucous membrane of the stomach and the small intestine produces digestive enzymes?
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b. All systems of the body contribute to homeostasis. How does the digestive system contribute?
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c. The liver "fine tunes" the contribution to homeostasis by the digestive system. How?
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2. Considering the experiment described in Figure 14.12:
a. Does the experiment show that the enzyme pepsin prefers an acidic rather than a basic pH? Describe an experiment that would show this.
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b. Does the experiment described in Figure 14.12 show that pepsin will digest only protein and not starch, for example? Describe an experiment that would show this.
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c. Does the experiment described in Figure 14.12 show that better digestion occurs at a warm temperature rather than a cold temperature? Describe an experiment that would show this.
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