Solved UPSC CDS/OTA Question
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Q · Excretory Systemmedium · 45s
Which organ excretes urea in humans?
TopicExcretory System
Question Typemultiple choice
Difficultymedium
Marking+1 / −0.33
Test Duration30 min
Step-by-Step Solution
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The liver converts ammonia—a toxic byproduct of amino acid metabolism—into urea in the urea cycle. The kidneys then filter urea from the blood into the urine, effectively excreting it from the body.
Final Answer: Option B - Kidney