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LAB11answers - LAB 11 THE MAMMALS Answers to the lab manual...

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LAB 11 THE MAMMALS Answers to the lab manual questions: How may a plant diet influence the structure and functions of a rat’s digestive system? (11-4) (This question relates to the 4 th question below) The length of the digestive tract of a vertebrate is related to its diet. Herbivores require longer tracts because plant material is harder to digest (requiring more time) than meat (muscle tissue). The longer the tract, the more time it takes for the food to pass through it, and the more time available for digestion and absorption. So, if a rat’s diet were largely plant material, they may evolve longer tracts with a large caecum. This is true for rabbits and other herbivorous vertebrates. Why would protein-digesting enzymes in the stomach normally be inactive? (11-4) To prevent digestion of the lining of the stomach. What is the role of the sodium bicarbonate released by the pancreas into the small intestine? (11-5)
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LAB11answers - LAB 11 THE MAMMALS Answers to the lab manual...

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