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Biol 373 Unit 6a Quiz with complete solutions
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Biol 373 Unit 6a Quiz with complete solutions
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Biol 373 Unit 6a QuizPut the following in order, as viewed from the lumen of the small intestine - correct answer ✔✔1.
Epithelium
2. Lamina propria
3. Submucosa
4. Muscular externa (circular and longitudinal muscle layers)
5. Serosa
When comparing the microanatomy of the renal tubules versus the gut tubes, which tissue component
in the intestine is most comparable to the 'interstitial' of the kidney? - correct answer ✔✔Lamina propria
The 'alkaline tide' that can be detected in plasma after ingestion of a meal is a result of ... - correct
answer ✔✔export of bicarbonate (in exchange for chloride) on the basolateral membrane of acid-
secreting parietal cells of the stomach.
Which statement best describes mechanisms underlying the secretion of saline (sodium chloride plus
water) that dilutes the mucus in intestine and salivary glands? - correct answer ✔✔diffusion of Cl- into
the lumen through CFTR channels, with Na+ and water following passively via the paracellular pathway.
Assume a drug taken by injection is going to be metabolized in the liver and excreted in the feces. Its
path to the liver, and out of the liver would be ... - correct answer ✔✔hepatic artery -> sinusoids -> bile
canaliculi -> bile ductules -> common hepatic duct
To be absorbed in the small intestine, starch must be broken down to _______ and moved across the
apical membrane of intestinal epithelium by _______. - correct answer ✔✔monosaccharide units,
coupled transport
Which order best describes the major steps in protein digestion? - correct answer ✔✔acid denaturation,
endopeptidase, exopeptidase
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