23. Is tubular reabsorption a selective transepithelial process? 24. In the PCT,
ID: 3518271 • Letter: 2
Question
23. Is tubular reabsorption a selective transepithelial process? 24. In the PCT, which substance is completely/partially reabsorbed? 25. Which cation is the most abundant in the filtrate 26. Which of the following is not encompassed by the term "passive tubular reabsorption"? 27. What does Tm represent 28. What happens when excess of a particular substance is present in the filtrate 29. Which segment of the renal tubule is most active in resorption 30. Which limb of the nephron loop is permeable to water but not solutes? 31. Which limb of the nephron loop is permeable to solutes but not water?Explanation / Answer
23. yes. it is selectively transepithelial process. it starts from proximal tubule
24.Glucose,amino acids,sodium,water,chloride absorbed in PCT.
25.Sodium is most abundant cation in filtrate.
26. Passive tubular reabsorption:it is movemnt of molecule along the electrochemical gradient.substances resorbed here are urea and water
27.it is tranport maximum. used to discuss glucose and PTH in kidney function.
28.Glomerulus filter the blood and make filtrate.when some molecules are present in high concentration in filtrate they are actively absorbed by the body by automatic regulation if it is required for body functioning otherwise they are excreted.
29.In PCT(proimal covulated tubule) there are main product absorb.which is most active part.
30.Descending tubule is permeable to water but not for solutes
31.Ascending tubule is permeable to solutes but not for water
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