151. Trypsin can activate A. pepsinogen. B. chymotrypsinogen. C. angiotensinogen. : 1380595

151. Trypsin can activate A. pepsinogen. B. chymotrypsinogen. C. angiotensinogen. : 1380595.


151.  Trypsin can activate  
A.  pepsinogen.
B.  chymotrypsinogen.
C.  angiotensinogen.
D.  endopeptidase.
E.  lipase.

152.  A proteolytic enzyme secreted by the pancreas is  
A.  ribonuclease.
B.  chymotrypsin.
C.  amylase.
D.  enterogastrone.
E.  pancreatic lipase.

153.  Which of the following statements concerning cholecystokinin is correct?  
A.  Cholecystokinin stimulates relaxation of the gallbladder.
B.  Cholecystokinin stimulates secretion of mucus by the gastric glands.
C.  Cholecystokinin stimulates the pancreas to release an enzyme-rich solution.
D.  Cholecystokinin stimulates the intestine to secrete trypsin.
E.  Cholecystokinin stimulates gastric secretions.

154.  The major stimulus for the release of cholecystokinin is the presence of ______ in the intestine.  
A.  bile
B.  pancreatic juice
C.  fatty acids and other lipids
D.  sugars
E.  proteins

155.  The mucosa of the colon  
A.  contains many mucus-secreting goblet cells.
B.  exchanges sodium ions for chloride ions.
C.  actively secretes sodium and chloride ions.
D.  produces enzymes that complete lipid digestion.
E.  consists of stratified columnar epithelium.

156.  One of the major functions of the large intestine is to  
A.  produce vitamin C.
B.  regulate the release of bile.
C.  break down hemoglobin to release bilirubin.
D.  convert chyme to feces.
E.  absorb nutrients.

157.  Feces consist of  
A.  water.
B.  undigestible food.
C.  bacteria.
D.  sloughed-off epithelial cells.
E.  All of these are found in feces.

158.  Gastrocolic reflexes are reflexes that  
A.  empty the stomach.
B.  release gastric secretions into the stomach.
C.  cause mass movements of the colon when food is present in the stomach.
D.  lead to mass movements of the colon in response to food in the duodenum.
E.  stop movement in the colon.

159.  Strong peristaltic contractions in the large intestine are called  
A.  segmental contractions.
B.  churning contractions.
C.  mass movements.
D.  rectal propulsions.
E.  defecation.

160.  The defecation reflex  
A.  is stimulated by distention of the rectum.
B.  inhibits further peristalsis in the rectum and lower colon.
C.  constricts the internal anal sphincter.
D.  lasts several hours.
E.  None of these choices is correct.



151. Trypsin can activate A. pepsinogen. B. chymotrypsinogen. C. angiotensinogen. : 1380595

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