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The presence of arginase confirms that
- a)Arginine is being converted to citrulline.
- b)Urea cycle is operating.
- c)Arginine is being converted to ornithine.
- d)Urea cycle may be operating.
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The presence of arginase confirms thata)Arginine is being converted to...
In mammals, urea is produced from ammonia in five enzymatic steps. The urea cycle begins inside liver mitochondria but three of the subsequent steps takes place in the cytosol; the cycle thus spans two cellular compartments. In the last reaction of the urea cycle, the cytosolic enzyme arginase cleaves arginine to yield urea and ornithine. Ornithine is transported into the mitochondria to initiate another round of the urea cycle.
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The presence of arginase confirms thata)Arginine is being converted to...
Presence of Arginase Confirms that Arginine is being Converted to Ornithine
Introduction:
Arginase is an enzyme that plays a crucial role in the urea cycle, a metabolic pathway that occurs in the liver and is responsible for the detoxification of ammonia produced during amino acid metabolism. The urea cycle converts toxic ammonia into urea, which can be safely excreted by the kidneys.
Arginine Conversion:
Arginase is involved in the final step of the urea cycle, where it catalyzes the hydrolysis of arginine to produce ornithine and urea. This reaction takes place in the liver and is essential for the elimination of excess nitrogen in the form of urea.
Arginine to Ornithine Conversion:
The presence of arginase indicates that arginine is being converted to ornithine. Ornithine is a non-protein amino acid that serves as an intermediate in the urea cycle. It is subsequently converted to citrulline, another amino acid, by the enzyme ornithine transcarbamylase.
Urea Cycle Operation:
The presence of arginase also confirms that the urea cycle may be operating. The urea cycle consists of a series of enzymatic reactions that occur in the liver mitochondria and cytoplasm. These reactions involve the conversion of ammonia, carbon dioxide, and ornithine into urea. The urea is then transported to the kidneys for excretion.
Confirmation:
When arginase is present, it indicates that the urea cycle is functional and actively converting arginine to ornithine. This conversion is necessary for the elimination of excess nitrogen from the body.
Conclusion:
In summary, the presence of arginase confirms that arginine is being converted to ornithine and suggests that the urea cycle may be operating. This enzymatic process is crucial for the elimination of toxic ammonia and the production of urea, which is excreted by the kidneys.
Introduction:
Arginase is an enzyme that plays a crucial role in the urea cycle, a metabolic pathway that occurs in the liver and is responsible for the detoxification of ammonia produced during amino acid metabolism. The urea cycle converts toxic ammonia into urea, which can be safely excreted by the kidneys.
Arginine Conversion:
Arginase is involved in the final step of the urea cycle, where it catalyzes the hydrolysis of arginine to produce ornithine and urea. This reaction takes place in the liver and is essential for the elimination of excess nitrogen in the form of urea.
Arginine to Ornithine Conversion:
The presence of arginase indicates that arginine is being converted to ornithine. Ornithine is a non-protein amino acid that serves as an intermediate in the urea cycle. It is subsequently converted to citrulline, another amino acid, by the enzyme ornithine transcarbamylase.
Urea Cycle Operation:
The presence of arginase also confirms that the urea cycle may be operating. The urea cycle consists of a series of enzymatic reactions that occur in the liver mitochondria and cytoplasm. These reactions involve the conversion of ammonia, carbon dioxide, and ornithine into urea. The urea is then transported to the kidneys for excretion.
Confirmation:
When arginase is present, it indicates that the urea cycle is functional and actively converting arginine to ornithine. This conversion is necessary for the elimination of excess nitrogen from the body.
Conclusion:
In summary, the presence of arginase confirms that arginine is being converted to ornithine and suggests that the urea cycle may be operating. This enzymatic process is crucial for the elimination of toxic ammonia and the production of urea, which is excreted by the kidneys.
Community Answer
The presence of arginase confirms thata)Arginine is being converted to...
Arginase is an enzyme which converts arginine to ornithine
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The presence of arginase confirms thata)Arginine is being converted to citrulline.b)Urea cycle is operating.c)Arginine is being converted to ornithine.d)Urea cycle may be operating.Correct answer is option 'C'. Can you explain this answer?
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Solutions for The presence of arginase confirms thata)Arginine is being converted to citrulline.b)Urea cycle is operating.c)Arginine is being converted to ornithine.d)Urea cycle may be operating.Correct answer is option 'C'. Can you explain this answer? in English & in Hindi are available as part of our courses for NEET.
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