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NEETZoologyExcretory Products and their Elimination

Match List-I with List-II regarding the segments of the nephron and their functions. List-I List-II (A) Proximal Convoluted Tubule (I) Conditional reabsorption of Na ⁺ and water (B) Descending limb of Henle's loop (II) Reabsorption of 70-80% of electrolytes (C) Ascending limb of Henle's loop (III) Permeable to water but almost impermeable to electrolytes (D) Distal Convoluted Tubule (IV) Impermeable to water but allo

Options

  1. A(A)-(I), (B)-(IV), (C)-(III), (D)-(II)
  2. B(A)-(II), (B)-(IV), (C)-(III), (D)-(I)
  3. C(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
  4. D(A)-(I), (B)-(III), (C)-(IV), (D)-(II)

Correct answer

C. (A)-(II), (B)-(III), (C)-(IV), (D)-(I)

Step-by-step solution

According to NCERT, the Proximal Convoluted Tubule (PCT) is responsible for the reabsorption of 70-80% of electrolytes and water. The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes, which concentrates the filtrate as it moves down. The ascending limb is impermeable to water but allows transport of electrolytes actively or passively, diluting the filtrate. The Distal Convoluted Tubule (DCT) is the site for conditional reabsorption of Na ⁺ and water. Thus, the correct ma

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