Question detail
Why is ammonia converted into urea in the body?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Hormonal coordination in humans
Question
- A. It is less toxic than ammonia.
- B. It is easier to store.
- C. It can be used for energy.
- D. It is more soluble in water.
Answer
The correct option is It is less toxic than ammonia.. This answer is correct because it matches the approved learning objective to explain (HT only) that toxic ammonia is converted into urea for safe excretion in the subtopic Maintaining water and nitrogen balance in the body (biology only).
Explanation
The correct option is It is less toxic than ammonia.. It is less toxic than ammonia. is correct because it directly supports the approved learning objective to explain (HT only) that toxic ammonia is converted into urea for safe excretion. This belongs to the subtopic Maintaining water and nitrogen balance in the body (biology only) within Hormonal coordination in humans, so the explanation must stay tied to that curriculum context. The other options are incorrect because they either do not answer this learning objective, use a vague statement, or move away from Maintaining water and nitrogen balance in the body (biology only).
Common mistake
Confusing Ammonia and Urea
Students often confuse ammonia with urea, thinking both are excreted directly from the body.
Remember that ammonia is toxic and is converted into urea in the liver for safe excretion. Focus on the conversion process and its importance for detoxification.
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