Q. Which of the following is a structural and functional unit of kidneys?
Answer: Nephrons
Notes: The nephron is the basic structural and functional unit of the kidney. Its chief function is to regulate the concentration of water and soluble substances like sodium salts by filtering the blood, reabsorbing what is needed and excreting the rest as urine.

This question is part of 40000+ MCQs GKToday PCS Mock Tests Series in GKToday Android app. Question Number: 67 in GKToday PCS Mock Test - 160 in above course in App.