Excretion of dilute urine requires a. the presence of adh b. transport of sodium and chloride ions out of the descending loop of henle c. impermeability of the collecting tubule to water d. relative permeability of the distal tubule to water

The correct answer will be option C- impermeability of the collecting tubule.

Explanation:

The formation of urine is a complex process which takes place in the kidney. The amount of water and uric acid in urine is largely dependent on certain factors. When enough amount of water is present in the body, following changes takes place :

1. Low no production of Anti-diuretic hormone.

2. impermeability of the tubules of nephron like Distal, proximal and collecting tubule.

Thus, Option-C is the correct answer.

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