In a diabetic patient whose blood glucose level has become hyper-concentrated (>200mg/dL), the kidneys can no longer reabsorb glucose from the urine. Because glucose is a solute that draws water, excessive amounts of glucose in the urine will pull a large volume of water out of the body. This can result in symptoms of thirst and frequent urination. Water moving to areas of higher glucose concentration is an example of which process?
Question
In a diabetic patient whose blood glucose level has become hyper-concentrated (>200mg/dL), the kidneys can no longer reabsorb glucose from the urine. Because glucose is a solute that draws water, excessive amounts of glucose in the urine will pull a large volume of water out of the body. This can result in symptoms of thirst and frequent urination. Water moving to areas of higher glucose concentration is an example of which process?
Solution
The process you're referring to is called osmosis. Osmosis is the movement of water from an area of lower solute concentration to an area of higher solute concentration through a semi-permeable membrane. In this case, the high glucose concentration in the urine draws water out of the body, leading to increased thirst and frequent urination.
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