Biology - Excretory Products and their Elimination Question with Solution | TestHub
In the given diagram of Nephron, Identified A, B, C, D and match their function (1 to 4) and select the correct option:
1- Site of ultrafiltration
2- Impermeable to water
3- Reabsorption of glucose/ useful molecules
4- Water reabsorption and regulation of pH of body fluids.
Options:
Answer:
Solution:
Based on the given diagram of the nephron:
A represents the Bowman's capsule, which encloses the glomerulus. It is the primary site of ultrafiltration of blood. Thus, 1 matches with (A).
B represents the ascending limb of the loop of Henle. This segment is impermeable to water but permeable to electrolytes, helping in the maintenance of high osmolarity of medullary interstitial fluid. Thus, 2 matches with (B).
C represents the Proximal Convoluted Tubule (PCT). It is the major site for the reabsorption of essential nutrients like glucose, amino acids, and most of the electrolytes and water. Thus, 3 matches with (C).
D represents the Collecting Duct. It plays a significant role in the reabsorption of large amounts of water to produce concentrated urine and helps in the regulation of pH and ionic balance of body fluids by selective secretion of and ions. Thus, 4 matches with (D).
Therefore, the correct matching is 1-(A), 2-(B), 3-(C), 4-(D).
Answer: 1-(A), 2-(B), 3-(C), 4-(D)
