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NEETZoologyExcretory Products and their Elimination

Read the following statements and choose the follwoing option: 1. During urine formation , tubular cells secrete HCO3- 2. DCT is incapable of reabsorption of HCO3- 3. Ascending limb of Henle's loop is semipermeable to water 4. Descending limb of loop of Henle is permeable to water

Options

  1. AAll are incorrect
  2. BOnly 4 is correct
  3. CBoth 1and 4 is correct
  4. DOnly 3 is correct

Correct answer

B. Only 4 is correct

Step-by-step solution

The descending limb of loop of Henle is permeable to water but almost impermeable to electrolytes. This concentrates the filtrate as it moves down.

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