What is the main function of nephrons in kidneys?
Answer and explanation
Correct answer: Filtering blood to form urine
A nephron is the structural and functional unit of a kidney and performs the main steps of urine formation. Blood is filtered in the glomerulus, while useful substances such as appropriate amounts of water, salts, and glucose are selectively reabsorbed in the tubule. Remaining wastes form urine. Therefore option A is correct. The other choices describe breathing, digestion, or the pumping role of the heart, not kidney function.
Frequently asked questions
What is the correct answer to this question?
Filtering blood to form urine
Why is this the correct answer?
A nephron is the structural and functional unit of a kidney and performs the main steps of urine formation. Blood is filtered in the glomerulus, while useful substances such as appropriate amounts of water, salts, and glucose are selectively reabsorbed in the tubule. Remaining wastes form urine. Therefore option A is correct. The other choices describe breathing, digestion, or the pumping role of the heart, not kidney function.
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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