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During urine formation, the tubular cells secrete ------------------ into the filtrate.
- a)Potassium ions and ammonia
- b)Hydrogen ions and potassium ions
- c)Hydrogen ions, potassium ions and ammonia
- d)Only ammonia
Correct answer is option 'C'. Can you explain this answer?
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During urine formation, the tubular cells secrete ------------------ i...
During urine formation, the tubular cells secrete substances like hydrogen ions, potassium ions and ammonia into the filtrate.
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During urine formation, the tubular cells secrete ------------------ i...
Secretion of Substances during Urine Formation
During urine formation, tubular cells of the nephrons in the kidneys undergo a process of secretion where they actively transport certain substances from the peritubular capillaries into the tubular fluid. This process helps in the selective elimination of certain substances from the body.
Substances Secreted into the Filtrate
The substances that are secreted into the filtrate during urine formation include:
1. Hydrogen ions: These ions are secreted by the tubular cells into the filtrate to maintain the normal pH of the blood. The hydrogen ions combine with bicarbonate ions in the filtrate to form carbonic acid, which is then converted to water and carbon dioxide. The carbon dioxide is then eliminated from the body through respiration.
2. Potassium ions: These ions are also secreted by the tubular cells into the filtrate to maintain the normal levels of potassium in the blood. This helps in the proper functioning of the nervous and muscular systems.
3. Ammonia: The tubular cells also secrete ammonia into the filtrate. Ammonia is a waste product of protein metabolism and is toxic to the body. It is converted to urea in the liver and eliminated from the body through urine.
Importance of Secretion
The process of secretion is important for maintaining the internal environment of the body. It helps in regulating the pH, electrolyte balance, and fluid balance of the blood. It also helps in the elimination of waste products from the body.
Conclusion
During urine formation, the tubular cells secrete hydrogen ions, potassium ions, and ammonia into the filtrate. This process of secretion helps in the selective elimination of certain substances from the body and in maintaining the internal environment of the body.
During urine formation, tubular cells of the nephrons in the kidneys undergo a process of secretion where they actively transport certain substances from the peritubular capillaries into the tubular fluid. This process helps in the selective elimination of certain substances from the body.
Substances Secreted into the Filtrate
The substances that are secreted into the filtrate during urine formation include:
1. Hydrogen ions: These ions are secreted by the tubular cells into the filtrate to maintain the normal pH of the blood. The hydrogen ions combine with bicarbonate ions in the filtrate to form carbonic acid, which is then converted to water and carbon dioxide. The carbon dioxide is then eliminated from the body through respiration.
2. Potassium ions: These ions are also secreted by the tubular cells into the filtrate to maintain the normal levels of potassium in the blood. This helps in the proper functioning of the nervous and muscular systems.
3. Ammonia: The tubular cells also secrete ammonia into the filtrate. Ammonia is a waste product of protein metabolism and is toxic to the body. It is converted to urea in the liver and eliminated from the body through urine.
Importance of Secretion
The process of secretion is important for maintaining the internal environment of the body. It helps in regulating the pH, electrolyte balance, and fluid balance of the blood. It also helps in the elimination of waste products from the body.
Conclusion
During urine formation, the tubular cells secrete hydrogen ions, potassium ions, and ammonia into the filtrate. This process of secretion helps in the selective elimination of certain substances from the body and in maintaining the internal environment of the body.
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During urine formation, the tubular cells secrete ------------------ i...
During urine formation,the tubular cells secrete substances likehydeogen ions,potassium ions and ammonia into the filter
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During urine formation, the tubular cells secrete ------------------ into the filtrate.a)Potassium ions and ammoniab)Hydrogen ions and potassium ionsc)Hydrogen ions, potassium ions and ammoniad)Only ammoniaCorrect answer is option 'C'. Can you explain this answer?
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