In kidney failure dialysis performs which basic function?
Answer and explanation
Correct answer: Removing waste substances from blood
Healthy kidneys filter blood and remove nitrogenous wastes, excess salts, and extra water while helping maintain the internal balance of the body. In kidney failure, these wastes can accumulate to harmful levels. During dialysis, blood passes along a selectively permeable membrane against dialysis fluid, allowing some dissolved wastes and excess substances to diffuse out before the cleaned blood is returned. Thus dialysis partly substitutes for the kidneys’ excretory function, so option A is correct.
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What is the correct answer to this question?
Removing waste substances from blood
Why is this the correct answer?
Healthy kidneys filter blood and remove nitrogenous wastes, excess salts, and extra water while helping maintain the internal balance of the body. In kidney failure, these wastes can accumulate to harmful levels. During dialysis, blood passes along a selectively permeable membrane against dialysis fluid, allowing some dissolved wastes and excess substances to diffuse out before the cleaned blood is returned. Thus dialysis partly substitutes for the kidneys’ excretory function, so option A is correct.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: World of Living. Topic: Life Processes.
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