NEET Zoology (general) MCQ Question
Which of the following statements about the nephron and urine formation are correct?
The loop of Henle is involved in the concentration of urine by creating a counter current mechanism.
All nephrons have long loops of Henle that extend deep into the medulla.
The collecting duct is responsible for the selective reabsorption of water, contributing to urine concentration.
The glomerulus is a network of capillaries that filters blood into the renal tubule.
Correct Answer
Detailed Explanation
Statement A is correct as the loop of Henle plays a significant role in urine concentration through counter current mechanisms. Statement B is incorrect because not all nephrons have long loops; many are cortical nephrons with shorter loops. Statement C is correct as the collecting duct reabsorbs water, aiding in urine concentration. Statement D is also correct, as the glomerulus filters blood into the renal tubule.
Found an issue with this question?