Mega CNS Practice Test 500Questions EXAM
QUESTIONS AND ANSWERS 100% SOLVED
(Newest 2025) Absorption occurs in the stomach for which of the following nutrients?a.Vitamins b.Carbohydrates c.Minerals d.Alcohol - Correct Answers ✅Alcohol (Ch 1, Krause) pg 6 The stomach is the site of digestion of small amounts of lipid and protein. Large proteins are broken down into peptides.Otherwise, the stomach breaks down food into smaller particles and passes it into the small intestine, where absorption of all nutrients EXCEPT alcohol takes place.Alcohol is absorbed through the stomach.Pepsinogen is converted to pepsin when it comes in contact with a.enterokinase.b.trypsinogen. 1 / 4
Mega CNS Practice Test 500Questions EXAM
QUESTIONS AND ANSWERS 100% SOLVED
(Newest 2025) c.hydrochloric acid.d.peptidases. - Correct Answers ✅HCl (Ch 1, Krause) pg 7 Pepsinogen is secreted in the stomach and converted to its active form by the acid environment of the stomach.Enterokinase is secreted by the brush border of the small intestine in response to the presence of chyme. Trypsinogen is secreted by the pancreas and activated by enterokinase.Various peptidases are secreted by the either brush border or the pancreas.The sight or smell of food produces vagal stimulation of the parietal cells of the gastric mucosa, resulting in the increased production of what?a.Motilin b.Hydrochloric acid c.Cholecystokinin d.Secretin - Correct Answers ✅HCl (CH 1, Krause) pg 5 2 / 4
Mega CNS Practice Test 500Questions EXAM
QUESTIONS AND ANSWERS 100% SOLVED
(Newest 2025) Parasympathetic innervation that causes release of hydrochloric acid helps prepare the stomach for the potential of receiving food. After food chyme is passed into the small intestine from the stomach, secretin and cholecystokinin are secreted to stimulate pancreatic secretion of water and bicarbonate. They also signal gallbladder contractions and colonic motility, all resulting in reductions in stomach emptying and duodenal motility. Motilin is secreted from the duodenal mucosa during fasting to stimulate gastric emptying and intestinal motility.If a patient experiences malabsorption of fat resulting from an impaired ability to produce adequate bile salts for micelle formation, how may fat absorption be improved?a.By increasing short-chain fatty acids in the diet b.By increasing medium-chain fatty acids in the diet c.By increasing long-chain fatty acids in the diet d.By restricting dietary intake of cholesterol - Correct Answers ✅By increasing medium-chain fatty acids in the diet (Ch 1, Krause) pg 7 3 / 4
Mega CNS Practice Test 500Questions EXAM
QUESTIONS AND ANSWERS 100% SOLVED
(Newest 2025) Medium-chain fatty acids of 8 to 12 carbons can be absorbed directly by mucosal cells without the presence of bile. The long-chain fatty acids require micelle formation for absorption. Short-chain fatty acids result from bacterial fermentation of malabsorbed carbohydrates and fibers. As bile is produced from cholesterol, dietary restriction of cholesterol is negligible in regard to improvements in fat absorption.What is the function of secretin?a.Stimulation of gastric secretions and increased motility b.Stimulation of gallbladder contraction and the release of bile c.Stimulation of the pancreas to secrete water and bicarbonate d.Stimulation of the parietal cells to secrete gastrin - Correct Answers ✅Stimulation of the pancreas to secrete water and bicarbonate (Ch 1, Krause) pg 6 Secretin is the hormone that works in opposition to gastrin.Whereas gastrin stimulates stomach digestion activities,
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