Multiple Choice
Which of the following animals uses only intracellular digestion?
39. Digestive System
Digestion
Back39. Digestive System
Digestion
- Multiple ChoiceIn vertebrates, food is moved along the length of the digestive system by __________.
- Multiple ChoiceChemical digestion of carbohydrates begins in the __________ with the action of __________.
- Multiple ChoiceThe tongue does all of the following except __________.
- Multiple ChoiceHow is the stomach lining protected from the strongly acidic pH of its contents?
- Multiple ChoiceWhich of the following might make the most effective anti-ulcer medication?
- 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 __________.