To determine: Whether the higher glucose concentration in blood than it can be reabsorbed in the kidney would result in loss or gain of water.
Introduction: Maintenance of osmotic balance in tissues is essential to perform different
Explanation of Solution
Reabsorption refers to the selective movement of solutes, like amino acids, glucose, and several other inorganic ions, from the filtrate present in the tubules system to the body fluids. Further, they move back into the blood stream through surrounding peritubular capillaries. Reabsorption of water also occurs and this process can be controlled for regulating the extent of water loss. When the glucose concentration is about 180 mg/100 mL in blood, saturation occurs. In untreated diabetes mellitus, the glucose concentration in blood exceeds this quantity. The glucose molecules that remain in the glomerular filtrate are then eliminated in the urine. An increase in the quantity of glucose in the blood would decrease the quantity of water that is reabsorbed, thus ultimately resulting in the loss of water.
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Chapter 49 Solutions
BIOLOGY 12TH ED (LL) W/ CONNECT
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- drugs known as potassium-sparing diuretics work by blocking the effects of aldosterone on the kidney. what effect would these drugs have on the amount of urine produced, on the blood pressure, and on potassium ion concentration in the blood? could these drugs have a negative impact on the acid-base balance of the body? explain.arrow_forwardSay someone has a blood glucose level of 245 mg/dl. Which statement below would be correct? O They would exhibit glycosuria because the transport maximum of glucose has been exceeded. O They would exhibit glycosuria because of decreased osmosis in the urine collecting duct. O They would not exhibit glycosuria because the transport maximum of glucose has been exceeded. O They would not exhibit glycosuria because of decreased osmosis in the urine collecting duct.arrow_forwardAll of the following are true about glucose recovery from the tubule fluid, except (choose the incorrect statement): A. All filtered glucose is released in the PCT unless plasma glucose abnormally high B. It is reabsorbed by coupling with Na+ recovery via a sodium glucose cotransporter C. Glucose recovery is made possible by low intracellular Na+ concentrations created by the NaK pump D. The CD recovers any glucose that is not reabsorbed by the PCT nephron loop and DCT this is not and will not be gradedarrow_forward
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