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Questions and Answers
What is the primary mechanism of water reabsorption from kidney tubules?
What is the primary mechanism of water reabsorption from kidney tubules?
- Active transport
- Solvent drag
- Facilitated diffusion
- Passive transport (correct)
Which of the following solutes is typically transported by diffusion?
Which of the following solutes is typically transported by diffusion?
- Urea
- Glucose (correct)
- Sodium ions
- Potassium ions
What is the typical rate of urine output in a normal individual?
What is the typical rate of urine output in a normal individual?
- 0.5 ml/min
- 1 ml/min (correct)
- 2 ml/min
- 5 ml/min
What is the primary function of the renal tubule?
What is the primary function of the renal tubule?
Which of the following transport mechanisms is influenced by the electrical gradient?
Which of the following transport mechanisms is influenced by the electrical gradient?
What is the name of the process where solutes are transported from their area of higher concentration to the area of lower concentration?
What is the name of the process where solutes are transported from their area of higher concentration to the area of lower concentration?
What is the primary driving force for water reabsorption in the proximal tubule?
What is the primary driving force for water reabsorption in the proximal tubule?
Through which route does water pass in the proximal tubule?
Through which route does water pass in the proximal tubule?
What is the approximate percentage of filtered water reabsorbed in the proximal tubule?
What is the approximate percentage of filtered water reabsorbed in the proximal tubule?
Which of the following solutes is osmotically most active?
Which of the following solutes is osmotically most active?
What is the role of Na+ -H+ antiport in the proximal tubule?
What is the role of Na+ -H+ antiport in the proximal tubule?
What is the primary mechanism of water reabsorption in the proximal tubule?
What is the primary mechanism of water reabsorption in the proximal tubule?
What is the osmolality of the interstitial fluid in the proximal tubule?
What is the osmolality of the interstitial fluid in the proximal tubule?
What is the result of the accumulation of water in the interstitial space?
What is the result of the accumulation of water in the interstitial space?
Which part of the B-Loop of Henle is impermeable to water?
Which part of the B-Loop of Henle is impermeable to water?
What is the primary function of aquaporin 1 in the proximal tubule?
What is the primary function of aquaporin 1 in the proximal tubule?
What is the percentage of filtered NaCl reabsorbed by the B-Loop of Henle?
What is the percentage of filtered NaCl reabsorbed by the B-Loop of Henle?
Why does the fluid in the terminal part of the descending limb become hypertonic?
Why does the fluid in the terminal part of the descending limb become hypertonic?
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