Question

The quantity of urine excreted by a person in different seasons is given below. Analyze it and answer the following questions.

Season 1	Season 2	Season 3	Season 4
1.5 litre/day	1.4 litre/day	1.9 litre/day	1.8 litre/day

a. Which is the coldest season?

b. Which hormone is responsible for the variation in quantity of urine? 

c. How does this hormone regulate the water level of the body?

Answer 1

a. Season 3 

b. Vasopressin (ADH)

c. If the production of vasopressin decreases, the reabsorption of water in kidneys decreases.

As a result. the quantity of water level in urine increases.