Question detail
What is the primary purpose of kidney dialysis?
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. To increase blood pressure
- B. To remove urea and balance ions
- C. To enhance hormone production
- D. To stimulate red blood cell production
Answer
The correct option is To remove urea and balance ions. This answer is correct because it matches the approved learning objective to describe kidney dialysis as a treatment that removes urea and balances ions for people with kidney failure in the subtopic Maintaining water and nitrogen balance in the body (biology only).
Explanation
The correct option is To remove urea and balance ions. To remove urea and balance ions is correct because it directly supports the approved learning objective to describe kidney dialysis as a treatment that removes urea and balances ions for people with kidney failure. 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
Misunderstanding Dialysis Function
Students often think that dialysis completely replaces kidney function instead of understanding that it only removes waste products like urea and balances ions.
Clarify that while dialysis helps manage waste removal and ion balance, it does not replicate all kidney functions, such as hormone production and fluid regulation.
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