Which is not true for the function of renal tubules in the following ?DCT-conditional reabsorption of Na+ and water, selective secretion of hydrogen ,potassium ions and NH3Collecting duct- maintaince of pH and ionic balances of blood by selective secretion of H+ and K+PCT-100% electrolytes and water are reabsorbed, also helps to maintain the pH and ionic balance of blood.Loop of Henle-reabsorption is minimum in ascending limb.
Question
Which is not true for the function of renal tubules in the following ?DCT-conditional reabsorption of Na+ and water, selective secretion of hydrogen ,potassium ions and NH3Collecting duct- maintaince of pH and ionic balances of blood by selective secretion of H+ and K+PCT-100% electrolytes and water are reabsorbed, also helps to maintain the pH and ionic balance of blood.Loop of Henle-reabsorption is minimum in ascending limb.
Solution
The function of renal tubules can be summarized as follows:
- Distal Convoluted Tubule (DCT):
- Conditional reabsorption of Na+ and water: The DCT selectively reabsorbs sodium ions (Na+) and water based on the body's needs.
- Selective secretion of hydrogen, potassium ions, and NH3: The DCT also secretes hydrogen ions (H+), potassium ions (K+), and ammonia (NH3) to maintain the body's acid-base balance.
- Collecting Duct:
- Maintenance of pH and ionic balances of blood: The collecting duct plays a crucial role in maintaining the pH and ionic balance of the blood. It selectively secretes hydrogen ions (H+) and potassium ions (K+) to regulate these balances.
- Proximal Convoluted Tubule (PCT):
- 100% electrolytes and water reabsorption: The PCT is responsible for reabsorbing 100% of electrolytes (such as sodium, potassium, and chloride ions) and water from the filtrate.
- Maintenance of pH and ionic balance of blood: The PCT also helps in maintaining the pH and ionic balance of the blood by regulating the reabsorption of these substances.
- Loop of Henle:
- Minimum reabsorption in the ascending limb: The loop of Henle is divided into a descending limb and an ascending limb. The reabsorption of water is maximum in the descending limb, while the reabsorption of electrolytes (such as sodium and chloride ions) is minimum in the ascending limb.
In summary, the renal tubules perform various functions, including reabsorption of electrolytes and water, selective secretion of ions, and maintenance of pH and ionic balance of the blood.
Similar Questions
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