Question detail

Explain how the loss of urea through sweat contributes to the body's nitrogen balance.

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 how the loss of urea through sweat contributes to the body's nitrogen balance.

Answer

The loss of urea through sweat helps to eliminate excess nitrogen from the body, which is a byproduct of protein metabolism. This process aids in maintaining nitrogen balance and prevents the accumulation of toxic substances in the body.

Explanation

This answer is strong as it connects the loss of urea to nitrogen balance, demonstrating an understanding of metabolic processes. The question tests the student's ability to apply knowledge of excretion and homeostasis.

Common mistake

Misunderstanding Sweat Composition

Students often think that sweat is primarily composed of water and does not contain ions or urea.

Emphasize that sweat contains not only water but also ions (like sodium and potassium) and urea, which are lost during sweating.

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Describe Water Ions And Urea Loss From The Skin In Sweat Exam Style 2 | AQA GCSE Biology Question detail | ExamCompanion