If plasma osmolarity increases above 300 mOsM (i.e. higher than normal osmolarity), what would likely happen to the plasma concentrations of antidiuretic hormone (ADH) and the reabsorption of water from the collecting ducts of the kidneys?Question 42Select one:a.Plasma ADH concentrations increase; reabsorption of water decreasesb.Plasma ADH concentrations decrease; reabsorption of water decreasesc.Plasma ADH concentrations increase; reabsorption of water does not changed.Plasma ADH concentrations decrease; reabsorption of water increasese.Plasma ADH concentrations increase; reabsorption of water increases

ADH tends to increase the amount of water reabsorbed by the body.Group of answer choicesTrueFalse

What might happen to red blood cells if the water potential of your blood plasma is too high?Cell lysisShrivel and shrinkRetains normal concave shapeLose their red colour2Which of the following molecules are too big to pass from the blood into the kidneys during the filtering process? UreaMineral ionsGlucoseProteins3Which molecules move back into the blood from the kidneys by the controlled process of selective reabsorption?  Water and mineral ionsGlucoseBlood cellsUrea4What is the effect of an increase in ADH secretion by the pituitary gland? An increase in urea productionA decrease in selective reabsorption of water into the bloodAn increase in selective reabsorption of water into the blood An increase in uptake of glucose by the cells5Dialysis is used on people with kidney failure to remove the urea and excess mineral ions that have built up in their blood. How do these substances move out of the patient’s blood into the dialysis fluid? Active transportDiffusion up a concentration gradientDiffusion down a concentration gradientOsmosis6Which of the following is an advantage of dialysis compared with a kidney transplant? More expensiveRequires restricted dietTime-consuming procedureNo need for immunosuppressant drugs

Click and drag on elements in orderPlace the statements in the correct order to illustrate the role of antidiuretic hormone (ADH) in regulating extracellular volume.InstructionsDrag and drop application.Choice 1 of 5. Blood pressure and extracellular fluid volume decrease. toggle buttonBlood pressure and extracellular fluid volume decrease.Choice 2 of 5. Reabsorption of water in kidney tubules decreases toggle buttonReabsorption of water in kidney tubules decreasesChoice 3 of 5. Blood pressure greatly increases. toggle buttonBlood pressure greatly increases.Choice 4 of 5. ADH secretion is inhibited. toggle buttonADH secretion is inhibited.Choice 5 of 5. Urine volume increases. toggle buttonUrine volume increases.Need help? Review these concept resources.

When concentrations of antidiuretic hormone are low, water reabsorption in the collecting ducts is ________, causing urine output to be ________.Question 39Answera.high : lowb.low : highc.high : highd.unaffected : unchangede.low : low

Which of the following is a direct result of antidiuretic hormone? Decreased urine volume Decreased urine molarity Increased urine volume Increased urine salinity