Question

Which of the following processes creates high osmotic pressure in uriniferous tubule?

• A. Active secretion of $N{a}^{+}$ into efferent arteriole followed by Cl secretion
• B. Active $N{a}^{+}$ absorption followed by Cl absorption
• C. Active secretion of $C{l}^{-}$ and absorption of $N{a}^{+}$ into efferent arteriole
• D. Active Cl absorption followed by absorption of $N{a}^{+}$

Answer 1

The correct option is B Active $N{a}^{+}$ absorption followed by Cl absorption

The nephron is the structural and functional unit of the kidney. It is also called as uriniferous tubule. The active absorption of Na+ ion followed by the absorption of Cl created high osmotic pressure in the uriniferous tubule.

So, the correct answer is 'Active Na+ absorption followed by Cl absorption'.