Excretory Products And Their Elimination Question 25
Question: Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.
Which structures have an ability to produce the concentrated urine?
Options:
A) 1, 2, 3
B) 3, 4, 5
C) 6, 7, 8
D) 2, 4, 7
Show Answer
Answer:
Correct Answer: B
Solution:
[b] 3, 4 and 5 are respectively descending limb, ascending limb of loop of Henie and vasa recta.
These three structures have an ability to produce the concentrated urine through the process of countercurrent exchange system.
Counter current mechanism (the process due to which urine is made hypertonic) is regular exchange of $ N{a^{+}} $ ions between the ascending and descending limbs of kidney.
BETA
