Arkansas Esthetician Practice Exam

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Which organ converts and neutralizes ammonia from the circulatory system to urea?

  1. Kidney

  2. Heart

  3. Liver

  4. Lungs

The correct answer is: Liver

The liver is the correct answer because it is responsible for converting ammonia, a toxic waste product, into urea which can be safely excreted from the body. The kidneys are responsible for filtering the blood and removing excess urea, but they do not directly convert ammonia. The heart and lungs play important roles in the circulatory system, but they do not convert or neutralize ammonia. Therefore, C is the only logical choice for this question.

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