BMS 300 Exam 4 CSU exam questions with correct answers

BMS 300 Exam 4 CSU exam /| /| /| /| /| /|




questions with correct answers /| /| /|




Maltase, Lactase and Sucrase are all ________________________
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that function as enzymes to break down their respective
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disaccharide. - CORRECT ANSWERS ✔✔transmembrane proteins /| /| /| /| /|




Where would you expect to find blood that is Oxygen poor, but
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nutrient rich? - CORRECT ANSWERS ✔✔hepatic portal vein
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How does glucose get into the hepatic portal system? -
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CORRECT ANSWERS ✔✔Glut2 on the basilar side of the
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enterocytes


Lipase converts triglycerides into a monoglyceride and 2
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molecules of fatty acids in the unstirred layer of the small
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intestines. (t or f) - CORRECT ANSWERS ✔✔False /| /| /| /| /| /| /|




The Na+ driven co-transporters for glucose and amino acids are
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located on what side of the membrane? - CORRECT ANSWERS
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✔✔apical


The ability to digest the milk sugar lactose is unique to
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mammals. At the time of weaning, this gene is normally turned
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off by a regulatory gene located upstream from the lactase
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gene. A single base change in the regulatory gene can prevent it
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from inactivating the lactase gene and permit the persistence of
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, lactase expression into adulthood. These spontaneous mutations
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in the regulatory gene have occurred independently in several
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human populations. About 8000 years ago such a mutation
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occurred in one individual in central Norther Europe. This
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individual and his or her offspring had such a selective
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advantage that in some Northern European populations 90- 95%
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of the population have the mutant regulatory gene. In two East
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African cultures, singl nucleotide changes in the regulatory gene,
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which are distinct from one another and different from the
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European mutation, have imparted lactase persistence in these
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populations. - CORRECT ANSWERS ✔✔duct, from the lumen into /| /| /| /| /| /| /| /| /|


epithelial cell /|




The products of the disaccharideas described in the statement
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enter the ______________ and are converted to _________________
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in hepatocytes. - CORRECT ANSWERS ✔✔hepatic portal blood,
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glycogen


Smooth muscle concentration in the _______________ would
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decrease Glomerular Filtration Rate (GFR) - CORRECT ANSWERS
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✔✔afferent arteriole /|




Blocking the Na+/K+/2Cl- transporter with the diuretic
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furosemide (Lasix) would occure in the - CORRECT ANSWERS /| /| /| /| /| /| /| /| /|


✔✔thick segment of ascending limb /| /| /| /|




In the pulmonary capillaries, carbonic anhydrase in erythrocytes
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predominantly generates: - CORRECT ANSWERS ✔✔CO2 from /| /| /| /| /| /| /|


HCO3- and H+ /| /|