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Hippuric acid, cretinines and ketones are added to urine through
- a)selective reabsorption
- b)glomerular filtration
- c)tubular secretion
- d)both (b) and (c)
Correct answer is option 'D'. Can you explain this answer?
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Verified Answer
Hippuric acid, cretinines and ketones are added to urine througha)sele...
In the kidney, urine formation occurs in three steps, Glomerular filtration, Reabsorption, and tubular secretion. Glomerular filtration is the process by which nitrogenous waste likes Hippuric acid, creatinine and ketone bodies from glomerular blood are filtered through minute pores called filtration slits present in the wall of Bowman's capsule, tubular secretion is the transfer of nitrogenous waste materials like Hippuric acid, creatinine, and ketone materials from the peritubular capillaries to the renal tubular lumen. Hence Hippuric acid, creatinine, and ketones are added to urine through Glomerular filtration and Tubular secretion.
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Hippuric acid, cretinines and ketones are added to urine througha)sele...
Understanding Urine Composition
Urine is a complex fluid that contains various substances, including waste products that the body needs to eliminate. The process of urine formation involves several key mechanisms: glomerular filtration, selective reabsorption, and tubular secretion.
Mechanisms of Urine Formation
- Glomerular Filtration:
This process occurs in the glomeruli of the kidneys, where blood is filtered to remove waste products and excess substances. Small molecules, including hippuric acid and creatinine, pass through the glomerular membrane and enter the renal tubules.
- Tubular Secretion:
This process involves the active transport of substances from the blood into the tubular fluid. While glomerular filtration allows substances like ketones to enter the urine, tubular secretion actively adds more waste products to the urine.
Substances Added to Urine
- Hippuric Acid:
This is primarily a result of tubular secretion, where certain organic compounds are secreted into the urine from the blood.
- Creatinine:
Although mainly filtered through the glomeruli, creatinine can also be secreted in small amounts from the renal tubules into urine.
- Ketones:
Ketones can enter the urine through both glomerular filtration and tubular secretion, especially during states like fasting or uncontrolled diabetes.
Conclusion
Thus, hippuric acid, creatinine, and ketones are introduced into urine through both glomerular filtration and tubular secretion, confirming that the correct answer is option 'D'. Understanding these processes is crucial for the NEET examination and for comprehending renal physiology.
Urine is a complex fluid that contains various substances, including waste products that the body needs to eliminate. The process of urine formation involves several key mechanisms: glomerular filtration, selective reabsorption, and tubular secretion.
Mechanisms of Urine Formation
- Glomerular Filtration:
This process occurs in the glomeruli of the kidneys, where blood is filtered to remove waste products and excess substances. Small molecules, including hippuric acid and creatinine, pass through the glomerular membrane and enter the renal tubules.
- Tubular Secretion:
This process involves the active transport of substances from the blood into the tubular fluid. While glomerular filtration allows substances like ketones to enter the urine, tubular secretion actively adds more waste products to the urine.
Substances Added to Urine
- Hippuric Acid:
This is primarily a result of tubular secretion, where certain organic compounds are secreted into the urine from the blood.
- Creatinine:
Although mainly filtered through the glomeruli, creatinine can also be secreted in small amounts from the renal tubules into urine.
- Ketones:
Ketones can enter the urine through both glomerular filtration and tubular secretion, especially during states like fasting or uncontrolled diabetes.
Conclusion
Thus, hippuric acid, creatinine, and ketones are introduced into urine through both glomerular filtration and tubular secretion, confirming that the correct answer is option 'D'. Understanding these processes is crucial for the NEET examination and for comprehending renal physiology.
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Hippuric acid, cretinines and ketones are added to urine througha)selective reabsorptionb)glomerular filtrationc)tubular secretiond)both (b) and (c)Correct answer is option 'D'. Can you explain this answer?
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