NEET Zoology Human Excretory System MCQ Question
Which of the following statements about the human excretory system is correct?
The nephron is the functional unit of the kidney, consisting of a renal corpuscle and a renal tubule.
Uric acid is the most toxic nitrogenous waste excreted by humans, requiring large amounts of water for elimination.
Malpighian tubules are the primary excretory structures in humans, facilitating nitrogenous waste removal.
Ammonia is excreted by humans primarily due to its low toxicity, allowing for minimal water loss.
Correct Answer
Detailed Explanation
The nephron is indeed the functional unit of the kidney, which includes the renal corpuscle and renal tubule. Uric acid is less toxic than ammonia and requires less water for excretion, while Malpighian tubules are structures found in insects, not humans.
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