Nephron: structure and function

The same question, asked 4 times: 2023*, 2024*, 2025*, 2026. Every wording below, oldest first.

Try each one first, then open its answer.

Question 1
2023
24 $Name the part of the human excretory system where nephrons are found. Write the structure and function of nephrons.$
Question 2
2024
22 $Name the blood vessel which brings blood to the kidneys. Why is nephron called a basic filtration unit of kidney ? Write the role of tubular part of nephron in urine formation.$
Question 3
2025
23 (b) $(a) Identify ‘X’ in the figure of human nephron shown below. What role does it play in the process of urine formation ? (b) Why some substances are selectively reabsorbed from the initial filtrate of urine, as it flows along the tabular part of nephron ?$
Question 4
2026
16 (B) $(a) Draw a well-labelled diagram of nephron and label atleast 4 of its parts. (b) Write the role of capillary cluster inside Bowman’s capsule. (c) What is meant by selective reabsorption ?$

Question 1