MCDB 111 Su 2017 Section quiz 5A 9/6/17 Mark the best answer to each question on your scantron form. Make sure your name, perm, and MCDB 111 Summer quiz 5 appears on the answer form. Each correct answer is worth half a point. 1. Glucose is taken into intestinal epithelial cells from the intestinal lumen: a. by cotransport with H+ b. by passive diffusion c. by cotransport with Na+ d. by ATP-dependent primary active transport e. by countertransport with K+ 2. Diabetes insipidis is associated with a. decreased urine production b. a problem with the posterior pituitary preventing antidiuretic hormone (ADH) release c. increased sensitivity of collecting duct cells to ADH d. decreased secretion of glucose by the kidneys e. increased secretion of glucose by the kidneys 3. Which of the following is a function of the brush border found on columnar epithelial cells in the small intestine? a. It serves to increase the intestinal surface area b. It contains membrane-associated enzymes that convert disaccharides to monosaccharides c. It contains membrane-associated enzymes that convert small peptides to amino acids d. It is the site at which most nutrient absorption occurs e. All of the above are true 4. Which of the following is not a result of aldosterone release? a. increased insertion of K+ channels in the luminal membrane of the collecting duct cells b. increased insertion of Na+ channels in the luminal membrane of the collecting duct cells c. insertion of aquaporins into the luminal surface of the collecting duct cell membrane d. increased insertion of Na+ channels in the luminal membrane of collecting duct cells e. Both a and c 5. Glutamine is used by the kidney in the process of a. regulation of K+ secretion b. pH regulation c. glucose reuptake d. regulating the glomerular filtration rate e. preventing water loss 6. Which of the following is true of renin? a. It is released by the macula densa b. It is released in response to hypotension c. It is a hormone d. It is a protease e. It is responsible for the conversion of angiotensin I to angiotensin II7. Creatinine is present at 1 mg/ml in the plasma and 100 mg/ml in the urine, and urine is being produced at a rate of 2 ml/min. What is the rate of creatinine excretion? a. 100 mg/min b. 50 mg/ min c. 200 mg/min d. 0.02 mg/min e. 50 ml/min 8. An outcome of elevated plasma aldosterone is an a. increase in Na+ excretion b. increase in K+ retention c. increase in water retention d. increase in Cl- excretion e. both a and d 9. Pernicious anemia can result from a failure of the S. intestine to absorb vitamin a. A b. B6 c. B12 d. C e. K 10. Which would be isotonic with a 0.1 M NaCl solution? a. A 200 mOsm/L solution of glucose b. A 50 mOsm/L solution of glucose c. A 100 mOsm/L solution of glucose d. A 200 mOsm/L solution of KCl e. A 50 mOsm/L solution of
View Full Document
Unlocking...