Preview Questions (lecture 8)

Preview Questions (lecture 8) - Lecture 8 Absorption...

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Lecture 8: Absorption Questions you should be able to answer after today’s lecture. 1. Summarize in your own words what Ivan Pavlov means when he says. “ The digestive canal…may be compared to a chemical factory.” a. He is referring to the mechanical and chemical process the food goes through when entering the body and passing through ingestion, digestion, absorption, and elimination. 2. Which chemicals are formed when bicarbonate ions in the small intestine neutralize the stomach acids? a. They combine with the stomach acid to partially neutralize it producing CO2 and H20. 3. Which enzymes break down starch, lipids, and proteins? What are they broken down to? a. Enzymes produced by the pancreas i. Starch breakdown requires amylase ii. Protein breakdown requires proteases iii. And lipid breakdown required lipases b. The pancreas is an exocrine gland that secretes many enzymes into a duct that empties into the duodenum.
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