NEET Zoology Urine Formation MCQ Question
Which of the following statements about urine formation are correct?
The loop of Henle is primarily responsible for maintaining the osmolar gradient in the kidney interstitium.
The distal convoluted tubule is the main site for the reabsorption of electrolytes and water.
The collecting duct allows for the reabsorption of large amounts of urea to dilute the urine.
The juxta glomerular apparatus helps regulate the glomerular filtration rate by releasing renin in response to decreased GFR.
Correct Answer
Detailed Explanation
Statement A is correct as the loop of Henle maintains the osmolar gradient necessary for urine concentration. Statement B is misleading as the PCT is the major site of reabsorption, not the DCT. Statement C is incorrect because the collecting duct allows small amounts of urea to enter the medullary interstitium, not reabsorb it. Statement D is correct regarding the role of the juxta glomerular apparatus.
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