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What is the primary function of the collecting duct in the kidney?
- a)Reabsorption of glucose
- b)Reabsorption of Na+
- c)Reabsorption of water
- d)Secretion of Minerals
Correct answer is option 'C'. Can you explain this answer?
Most Upvoted Answer
What is the primary function of the collecting duct in the kidney?a)Re...
The primary function of the collecting duct in the kidney is the reabsorption of water. This segment allows for the concentration of urine by reabsorbing large amounts of water, thereby regulating the body's fluid balance. It also plays a crucial role in maintaining the body's pH and ionic balance by selectively secreting hydrogen and potassium ions.
NCERT Topic: Collecting duct
NCERT Line: "Large amounts of water could be reabsorbed from this region to produce a concentrated urine."
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What is the primary function of the collecting duct in the kidney?a)Re...
The Collecting Duct in the Kidney
The primary function of the collecting duct is crucial in the regulation of water balance in the body. Here’s a detailed look at its role:
Function Overview
- The collecting duct is the final segment of the nephron, the functional unit of the kidney.
- It plays a vital role in the concentration of urine.
Reabsorption of Water
- The collecting duct is primarily responsible for the reabsorption of water.
- This process is regulated by the hormone vasopressin (also known as antidiuretic hormone or ADH).
- When the body is dehydrated, ADH levels rise, increasing water reabsorption and producing concentrated urine.
Mechanism of Action
- Water is reabsorbed through aquaporin channels in the duct cells.
- This allows for the passive movement of water out of the duct and into the surrounding interstitial fluid, concentrating the urine.
- The presence of a high osmolarity in the medullary interstitium facilitates this process.
Importance of Water Reabsorption
- Efficient water reabsorption helps maintain fluid and electrolyte balance in the body.
- It prevents excessive water loss, which is essential for homeostasis.
Conclusion
- In summary, while the collecting duct can also play a role in the reabsorption of sodium and the secretion of minerals, its primary function is the reabsorption of water.
- This characteristic is crucial for regulating hydration and ensuring that the body retains necessary fluids.
Understanding the role of the collecting duct is fundamental for comprehending kidney function and overall fluid balance in the body.
The primary function of the collecting duct is crucial in the regulation of water balance in the body. Here’s a detailed look at its role:
Function Overview
- The collecting duct is the final segment of the nephron, the functional unit of the kidney.
- It plays a vital role in the concentration of urine.
Reabsorption of Water
- The collecting duct is primarily responsible for the reabsorption of water.
- This process is regulated by the hormone vasopressin (also known as antidiuretic hormone or ADH).
- When the body is dehydrated, ADH levels rise, increasing water reabsorption and producing concentrated urine.
Mechanism of Action
- Water is reabsorbed through aquaporin channels in the duct cells.
- This allows for the passive movement of water out of the duct and into the surrounding interstitial fluid, concentrating the urine.
- The presence of a high osmolarity in the medullary interstitium facilitates this process.
Importance of Water Reabsorption
- Efficient water reabsorption helps maintain fluid and electrolyte balance in the body.
- It prevents excessive water loss, which is essential for homeostasis.
Conclusion
- In summary, while the collecting duct can also play a role in the reabsorption of sodium and the secretion of minerals, its primary function is the reabsorption of water.
- This characteristic is crucial for regulating hydration and ensuring that the body retains necessary fluids.
Understanding the role of the collecting duct is fundamental for comprehending kidney function and overall fluid balance in the body.
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What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer?.
What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer? for NEET 2025 is part of NEET preparation. The Question and answers have been prepared according to the NEET exam syllabus. Information about What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for NEET 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for What is the primary function of the collecting duct in the kidney?a)Reabsorption of glucoseb)Reabsorption of Na+c)Reabsorption of waterd)Secretion of MineralsCorrect answer is option 'C'. Can you explain this answer?.
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