Excretory Products And Their Elimination Question 24
Question: Directions for (Qs. 96 to 99): Refer the given figure of nephron showing blood vessels and duct and answer the questions.
Which part is capable of reabsorption of $ HC{O^{-}}_3 $ and selective secretion of hydrogen and potassium ions and $ NH_3 $ to maintain the pH and sodium-potassium balance in blood?
Options:
A) 1
B) 3
C) 5
D) 7
Show Answer
Answer:
Correct Answer: D
Solution:
[d] Distal convoluted tubule (DCT) is marked as 7.
The DCT is an important site for the active secretion of ions, acids, drugs, & toxins and the selective reabsorption of sodium ions from the tubular fluid.
In the final portions of the DCT, an osmotic flow of water assists in concentrating the tubular fluid.
BETA
