Question detail
Explain the process by which toxic ammonia is converted into urea for safe excretion in the body.
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
Question
Type
exam_style
Style
Topic
Hormonal coordination in humans
Question
Explain the process by which toxic ammonia is converted into urea for safe excretion in the body.
Answer
Toxic ammonia is produced during the breakdown of proteins in the liver. To prevent ammonia from accumulating and causing harm, it is converted into urea through a process called the urea cycle. Urea is less toxic and can be safely transported in the bloodstream to the kidneys, where it is excreted in urine.
Explanation
This answer is strong because it clearly outlines the source of ammonia, the conversion process, and the final excretion method. The question tests the student's understanding of nitrogen metabolism and the importance of urea in maintaining homeostasis.
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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