SCB 204.1738, 1739
Quiz 5
FORM C
Robyn O’Kane, Ph.D.
Spring I 2008
Name_________________________________________________________________
1. Intestinal glands
A. contain a blood capillary network and a lacteal.
B. are also called villi.
C. have enteroendocrine cells, goblet cells, and absorptive epithelial cells lining them.
D. All of the above are correct.
E. A and B are correct only.
2. A person suffering from hepatitis will typically experience
A. difficulty detoxifying drugs.
B. jaundice.
C. stomach cancer.
D. All of the above are correct.
E. A and B are correct only.
3. In order for the esophageal stage of deglutition to begin,
A. segmentation in the esophagus must occur.
B. food must enter the stomach.
C. the upper esophageal sphincter must relax.
D. fecal matter must be pushed into the rectum.
4. Which of the following MUST be correct for a person with regulatory obesity?
A. He has diabetes.
B. His basal metabolic rate is low.
C. His body mass index is 30 or higher.
D. He has a tumor in his satiety center in the hypothalamus.
5. The final decomposition reaction that occurs to allow monomers to be absorbed
A. is stimulated by cholecystokinin (CCK).
B. is due to pancreatic secretions.
C. is due to brush border enzymes.
D. occurs in the large intestine.
6. All of the following contribute to the forward movement of digestive materials
through the GI tract EXCEPT
A. haustral churning.
B. peristalsis.
C. migratory motility complexes.
D. segmentation.
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7. The largest energy yield per gram of nutrient is in
A. proteins.
B. lipids.
C. carbohydrates.
D. They all have approximately the same energy yield per gram.
8. Bacteria in the large intestine
A. are released from gastric glands.
B. produce intrinsic factor.
C. are also called fiber.
D. contribute to protein catabolism.
9. A person who had a cholecystectomy due to gallstones will experience difficulty with
A. vitamin B12 absorption.
B. lipid digestion.
C. release of insulin.
D. bile production.
10. Which of the following increases the rate of gastric emptying?
A. Sympathetic stimulation
B. Insulin
C. Gastrin
D. Cholecystokinin (CCK)
11. Which of the following do not go to the liver immediately after absorption occurs?
A. Amino acids
B. Short-chain fatty acids
C. Monosaccharides
D. Chylomicrons
12. Nucleic acids are
A. made up of amino acid monomer units.
B. hydrolyzed by nucleases released from the pancreas.
C. substrates for pepsin.
D. All of the above are correct.
13. Immediately after you swallow your first bite of breakfast, you feel the urge to
defecate. Why?
A. Haustral churning occurred faster than usual.
B. Your breakfast immediately traveled down to your rectum and triggered stretch
receptors.
C. The gastrocolic reflex occurred, triggering stretch receptors in the rectum.
D. You didn’t release gastrin.
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14. The formation of a bolus of food in the mouth by the teeth, cheeks, and tongue is
called
A. chemical digestion.
B. mastication.
C. deglutition.
D. defecation.
15. Which type of receptor is required for the neural components that help control
digestion?
A. Merkel cell
B. Baroreceptor
C. Stretch receptor
D. Exteroceptor
16. Which of the following occurs during the cephalic phase of digestion?
A. Release of gastric juices
B. Salivation
C. The gastrocolic reflex
D. All of the above are correct.
E. A and B are correct only.
17. Which of the following is correct regarding parietal cells?
A. They secrete gastric lipase.
B. They are enteroendocrine.
C. They are found in the intestinal glands.
D. They release H+ and Cl- into the lumen of the stomach.
18. The presence of an acidic chyme in the duodenum stimulates all of the following
EXCEPT
A. a slowing of the digestive process.
B. sympathetic stimulation.
C. contraction of the pyloric sphincter.
D. increased peristalsis in the stomach.
19. When your caloric intake is greater than your energy expenditure, which of the
following will be occurring to a greater degree?
A. Catabolism
B. Anabolism
20. All of the following are correct pairings between the organ and the enzyme it
secretes EXCEPT
A. tongue – trypsin
B. salivary glands – amylase
C. pancreas – nuclease
D. stomach – pepsinogen/pepsin
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21. All of the following directly cause chemical digestion EXCEPT
A. brush border enzymes.
B. pancreatic enzymes.
C. bile.
D. salivary amylase.
22. The mucosa of the ENTIRE digestive tract is characterized by
A. mucus secretion.
B. containing enteroendocrine cells.
C. rugae.
D. cells with microvilli.
23. The organ with rugae as a structural feature of the mucosa is the
A. stomach.
B. esophagus.
C. small intestine.
D. large intestine.
24. A person who has been constipated for a while needs to speed up the passage of
materials through his digestive tract. Which of the following would you recommend to
help him?
A. A banana for its insoluble fiber.
B. A banana for its soluble fiber.
C. An apple skin for its insoluble fiber.
D. An apple skin for its soluble fiber.
25. Which feature of the small intestinal mucosa is essential to cause the chyme to spiral
slowly down the tract?
A. Villi
B. Microvilli on the epithelial cells
C. Plicae circularis
D. Rugae
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