Question

Assertion : Aquatic mammals like whales and seals are said to be ureotelic animals
Reason : It is because of the fact that nitrogenous waste product is urea

• 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
• E. If the assertion is false but reason is true

Answer 1

Answer: (A)

If both the assertion and the reason are true and the reason is a correct explanation of the assertion

Ureotelism is defined as the elimination of nitrogen mainly as urea. Aquatic mammals like whales and seals are said to be ureotelic animals because their major nitrogenous waste product is urea. As a matter of fact, ammonia is the basic nitrogenous metabolite of protein but since ammonia is highly toxic to the animals, therefore, its concentration must be kept very low in the blood and requires a large amount of water to be eliminated. So, the correct answer is 'If both the assertion and the reason are true and the reason is a correct explanation of the assertion'