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During the urine formation, the function/s of tubular secretion is/are:
(A) Secretion of H+, K+ and ammonia
(B) Maintenance of ionic balance
(C) Acid-base balance of the body fluids
Identify the correct statement/statements.
- a)Only (B) and (C)
- b)Only (A) and (B)
- c)Only (A) and (C)
- d)All (A), (B) and (C)
Correct answer is option 'D'. Can you explain this answer?
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During the urine formation, the function/s of tubular secretion is/ar...
During urine formation, tubular epithelial cells in different segments of nephrons are involved in reabsorption. They secrete H+, K+, and ammonia ions from blood into filtrate maintain ionic and acid-base balance of the body. Thus, tubular secretion is an important step in urine formation.
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During the urine formation, the function/s of tubular secretion is/ar...
During urine formation, the function of tubular secretion is to eliminate substances from the blood into the urine. This process occurs in the renal tubules of the nephrons in the kidneys and is important for maintaining homeostasis in the body. Tubular secretion serves several functions, including the secretion of H+, K+, and ammonia, maintenance of ionic balance, and acid-base balance of the body fluids.
1. Secretion of H+, K+, and ammonia:
- H+ ions are actively secreted into the renal tubules to regulate blood pH. Excess H+ ions are removed from the blood and excreted in the urine, helping to maintain the acid-base balance of the body.
- K+ ions are also actively secreted into the renal tubules. This secretion helps regulate the concentration of potassium ions in the blood and prevents abnormal levels that could disrupt cellular function.
- Ammonia (NH3) is produced in the liver during the breakdown of amino acids. It is converted into ammonium ions (NH4+) and secreted into the renal tubules. Ammonia secretion helps eliminate excess nitrogenous waste from the body.
2. Maintenance of ionic balance:
- Tubular secretion helps regulate the levels of various ions in the blood, including hydrogen ions (H+), potassium ions (K+), and ammonium ions (NH4+). By actively secreting these ions into the renal tubules, the kidneys maintain proper concentrations of these ions in the blood.
3. Acid-base balance of the body fluids:
- Tubular secretion of H+ ions helps regulate blood pH and maintain the acid-base balance of the body. By eliminating excess H+ ions from the blood, the kidneys prevent acidosis and maintain a slightly alkaline pH.
Therefore, the correct statement is option (d) All (A), (B), and (C). Tubular secretion plays a crucial role in maintaining electrolyte balance, acid-base balance, and excreting waste products from the body.
1. Secretion of H+, K+, and ammonia:
- H+ ions are actively secreted into the renal tubules to regulate blood pH. Excess H+ ions are removed from the blood and excreted in the urine, helping to maintain the acid-base balance of the body.
- K+ ions are also actively secreted into the renal tubules. This secretion helps regulate the concentration of potassium ions in the blood and prevents abnormal levels that could disrupt cellular function.
- Ammonia (NH3) is produced in the liver during the breakdown of amino acids. It is converted into ammonium ions (NH4+) and secreted into the renal tubules. Ammonia secretion helps eliminate excess nitrogenous waste from the body.
2. Maintenance of ionic balance:
- Tubular secretion helps regulate the levels of various ions in the blood, including hydrogen ions (H+), potassium ions (K+), and ammonium ions (NH4+). By actively secreting these ions into the renal tubules, the kidneys maintain proper concentrations of these ions in the blood.
3. Acid-base balance of the body fluids:
- Tubular secretion of H+ ions helps regulate blood pH and maintain the acid-base balance of the body. By eliminating excess H+ ions from the blood, the kidneys prevent acidosis and maintain a slightly alkaline pH.
Therefore, the correct statement is option (d) All (A), (B), and (C). Tubular secretion plays a crucial role in maintaining electrolyte balance, acid-base balance, and excreting waste products from the body.
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During the urine formation, the function/s of tubular secretion is/are:(A) Secretion of H+, K+ and ammonia(B) Maintenance of ionic balance(C) Acid-base balance of the body fluidsIdentify the correct statement/statements.a)Only (B) and (C)b)Only (A) and (B)c)Only (A) and (C)d)All (A), (B) and (C)Correct answer is option 'D'. Can you explain this answer?
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