Question

What effect would a lack of ADH secretion have on the volume and

concentration of urine produced by the kidney?

Answer 1

Lack of ADH increase urine volume and decrease urine concentration.

Step-by-step explanation:

ADH is a hormone which is responsible for regulation of urine volume. The hormone is released in the blood from the posterior pituitary when the ion concentration in the blood becomes high.

This hormone acts on the nephron especially on distal convoluted tubule and collecting duct and increases their permeability towards water which in absent of ADH is impermeable to water.

This increased permeability allows the reabsorption of water from these sections which reduces the blood volume and helps in producing concentrated urine.