Multiple Choice
Which of the following might make the most effective anti-ulcer medication?
39. Digestive System
Digestion
Back39. Digestive System
Digestion
- Multiple ChoiceWhich of the following statements regarding protein digestion is true?
- Multiple ChoiceAcid chyme __________.
- Multiple ChoiceIn humans, most nutrient molecules are absorbed by the __________.
- Multiple ChoiceThe liver and pancreas add their secretions to the partially digested food produced in the stomach, in the __________ of the small intestine.
- Multiple ChoiceThe natural antacid that protects the intestines against stomach acid is produced by the __________.
- Multiple ChoiceWhich of the following processes, structures, or conditions are properly matched?
- Multiple ChoiceMost digestive enzymes function in the __________.
- Multiple ChoicePepsin is an enzyme produced in the stomach that attacks proteins to break them down into smaller peptide molecules. Which of the following statements about this enzyme is true?
- Multiple ChoiceThe lungs consist of many small air sacs and blood vessels, which greatly increase surface area and improve the transfer of substances through their walls. The structures in the digestive system most similar in function to these air sacs and capillaries are the __________.
- Multiple ChoiceGallstone surgery sometimes requires that the gallbladder be removed. Patients are then advised to avoid ingesting large amounts of fat because __________.
- Multiple ChoiceWhich of the following animals rely on symbiotic relationships with bacteria to obtain nutrients?
- Multiple ChoiceHow would you expect the digestive system of a hawk to compare with that of a seed-eating sparrow?
- Multiple ChoiceWhere does absorption take place in the small intestine?
- Multiple ChoiceResearchers provided radioactively labeled food to a dog and traced the movement of absorbed molecules. Which type of molecule moved along a path different from all the others?