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Thinking Scientifically
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1. Considering homeostasis:
a. What type of tissue found in the mucous membrane of the stomach and the small intestine produces digestive enzymes?

Answer

b. All systems of the body contribute to homeostasis. How does the digestive system contribute?

Answer

c. The liver "fine tunes" the contribution to homeostasis by the digestive system. How?

Answer

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.

Answer

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.

Answer

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.

Answer








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