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Physiology Wk 13Quiz
| Question | Answer |
|---|---|
| Polysaccharides are hydrolyzed into disaccharides by enzymes known as: | amylase |
| The hormone that inhibits gastric muscle, slowing passage of food into the duodenum, is called: | gastric inhibitory peptide. |
| The enzyme pepsin begins the digestion of: | protein |
| Rotavirus can cause what life-threatening condition in infants? | Diarrhea |
| Cellulose is a residue of digestion that comes from: | carbohydrates |
| The enterogastric reflex causes: | inhibition of gastric peristalsis |
| Which of the following is a disaccharide? | sucrose |
| When classified according to the kind of chemical reactions catalyzed, digestive enzymes are referred to as _____ enzymes. | hydrolyzing |
| Bicarbonates are useful in the GI tract to: | neutralize hydrochloric acid |
| Which of the processes of mechanical digestion involves the esophagus? | Deglutition and Peristalsis |
| The hormone that stimulates the gallbladder to release bile is: | cholecystokinin. |
| The sodium cotransport or coupled transport acts to transport sodium ions and glucose molecules _____ the GI lumen. | passively out of |
| Which of the following is not one of the openings that must be blocked when food moves from the pharynx into the esophagus? | Oropharynx |
| The major site for the absorption of the end products of digestion is the: | Small Intestine |
| The final product of carbohydrate digestion is a: | monosaccharide |
| The purpose of peristalsis is to: | propel food forward along the GI tract |
| The process of swallowing is known as: | deglutition |
| Which blood vessel carries absorbed food from the GI tract to the liver? | Portal Vein |
| The substances absorbed into the lymph capillaries are: | glycerol and fatty acids |
| Which of these is not an example of mechanical digestion? | moistening the food |
| The process of fat emulsification consists of: | breaking fats into small droplets. |
| The intestinal hormone cholecystokinin: | causes the pancreas to increase exocrine secretions high in enzyme content, opposes the influence of gastrin on gastric parietal cells, stimulates the contraction of the gallbladder. (all) |
| Which phase(s) of gastric secretion is(are) stimulated by the sight, taste, and smell of food? | Cephalic Phase |
| The hormone thought to be a messenger causing release of digestive enzymes from the intestinal mucosa is: | vasoactive intestinal peptide. |
| The hormone that stimulates the release of bicarbonate substance from the pancreas is: | secretin |
| An end product of fat digestion is: | glycerol |
| Which of the following is not true of enzymes? | They change chemically and are in the end products of the reaction. |
| Glucose moves from the GI tract into the circulatory system by the process of: | cotransport |
| Hydrolysis refers to: | using water to split larger compounds into smaller ones. |
| Which step of deglutition is under voluntary control? | Oral Stage |
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Janelleu4771
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