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| 1 | |
The layers of the alimentary canal, from outside in, are the |
| | A) | serosa, muscular, submucosa and mucosa. |
| | B) | serosa, muscular, mucosa and submucosa. |
| | C) | mucosa, submucosa, muscular and serosa. |
| | D) | mucosa, muscular, submucosa, and serosa. |
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| 2 | |
There is a total of ________ deciduous teeth and ________ permanent teeth. |
| | A) | 24; 36 |
| | B) | 20; 32 |
| | C) | 22; 34 |
| | D) | 20; 36 |
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| 3 | |
The ________ salivary glands secrete a saliva rich in ________. |
| | A) | sublingual; mucus |
| | B) | submandibular; water |
| | C) | submaxillary; amylase |
| | D) | parotid; amylase |
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| 4 | |
________ catalyzes the digestion of starch and glycogen to maltose. |
| | A) | Amylase |
| | B) | Pepsin |
| | C) | Lipase |
| | D) | Maltase |
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| 5 | |
Gastric juice secretion is increased by ________ impulses and the hormone ________, which is produced by the stomach. |
| | A) | sympathetic; gastrin |
| | B) | sympathetic; secretin |
| | C) | parasympathetic; gastrin |
| | D) | parasympathetic; secretin |
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| 6 | |
The gastric enzyme ________ is secreted in inactive form and activated by the low pH of gastric juice. |
| | A) | rennin |
| | B) | pepsin |
| | C) | intrinsic factor |
| | D) | trypsin |
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| 7 | |
Acid chyme entering the duodenum causes the intestinal mucosa to secrete the hormone ________, which stimulates the secretion of ________ that is rich in bicarbonates. |
| | A) | secretin; intestinal juice |
| | B) | secretin; pancreatic juice |
| | C) | cholecystokinin; pancreatic juice |
| | D) | cholecystokinin; bile |
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| 8 | |
Bile, which emulsifies fats, is secreted by the |
| | A) | gall bladder. |
| | B) | pancreas. |
| | C) | small intestine. |
| | D) | liver. |
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| 9 | |
Both ________ and ________ catalyze the hydrolysis of proteins to form peptides. |
| | A) | pepsin; peptidase |
| | B) | trypsin; peptidase |
| | C) | pepsin; rennin |
| | D) | pepsin; trypsin |
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| 10 | |
The enzyme catalyzing the hydrolysis of triglycerides is |
| | A) | trypsin. |
| | B) | lipase. |
| | C) | maltase. |
| | D) | lactase. |
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| 11 | |
Carbohydrate digestion begins in the ________ and concludes in the ________. |
| | A) | mouth; large intestine |
| | B) | mouth; small intestine |
| | C) | stomach; large intestine |
| | D) | small intestine; small intestine |
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| 12 | |
The end products of protein digestion are ________, which are absorbed into ________ of villi. |
| | A) | amino acids; capillaries |
| | B) | monosaccharides; capillaries |
| | C) | peptides; capillaries |
| | D) | monoglycerides and fatty acids; lacteals |
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| 13 | |
The end products of fat digestion are converted into ________ within epithelial cells and move into the ________ of villi. |
| | A) | triglycerides; capillaries |
| | B) | small fatty acids; capillaries |
| | C) | chylomicrons; lacteals |
| | D) | monoglycerides and fatty acids; lacteals |
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| 14 | |
The primary function of the large intestine is the |
| | A) | completion of digestion. |
| | B) | completion of digestion and nutrient absorption. |
| | C) | absorption of the end products of digestion. |
| | D) | absorption of water and certain minerals and vitamins. |
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| 15 | |
_________ are primarily used as an energy source, but unused quantities are converted into _________ and stored. |
| | A) | Amino acids; triglycerides |
| | B) | Monosaccharides; triglycerides |
| | C) | Fatty acids; cholesterol |
| | D) | Monosaccharides; disaccharides |
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