Question

Assertion :Diabetes insipidus is marked by excessive urination and too much thirst of water. Reason: Anti-diuretic hormone (ADH) is secreted by the posterior lobe of pituitary.

• A. If both the assertion and the reason are true and the reason is a correct explanation of the assertion
• B. If both the assertion and reason are true but the reason is not a correct explanation of the assertion
• C. If the assertion is true but the reason is false
• D. If both the assertion and reason are false

Answer 1

The correct option is B If both the assertion and reason are true but the reason is not a correct explanation of the assertion

Diabetes insipidus is an uncommon disorder that causes an imbalance of fluids in the body. This imbalance makes you very thirsty even if you've had something to drink. It also leads you to produce large amounts of urine. Hence, the assertion is correct.

Antidiuretic hormone (ADH), also known as vasopressin, is a small peptide hormone which regulates the body's retention of water. It is one of only two hormones secreted by the posterior pituitary gland. So, the reason is also true, but it is not the correct explanation of the assertion.

So, the correct option is B.