Wanyama Emmanuel
Jul 14
Explain why humans do not excrete their nitrogenous wastes as ammonia yet fresh water fish do?
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Jul 14
Humans do not excrete their nitrogenous wastes as ammonia because it is highly toxic and requires a large amount of water to dilute and excrete safely. Ammonia is a byproduct of protein metabolism and is produced in the liver. In humans, ammonia is converted into urea, a less toxic compound, in the liver through a process called the urea cycle. Urea is then excreted by the kidneys in urine.
Freshwater fish, on the other hand, excrete their nitrogenous wastes as ammonia because they live in an environment with a high water content. Ammonia is highly soluble in water and can be easily diluted and excreted by fish through their gills and skin. This allows freshwater fish to efficiently remove nitrogenous wastes from their bodies without the need for complex metabolic processes like the urea cycle.
In summary, humans do not excrete their nitrogenous wastes as ammonia because it is toxic and requires a large amount of water to dilute and excrete safely. Freshwater fish, on the other hand, excrete their nitrogenous wastes as ammonia because they live in an environment with a high water content that allows for efficient excretion of this toxic compound.
Freshwater fish, on the other hand, excrete their nitrogenous wastes as ammonia because they live in an environment with a high water content. Ammonia is highly soluble in water and can be easily diluted and excreted by fish through their gills and skin. This allows freshwater fish to efficiently remove nitrogenous wastes from their bodies without the need for complex metabolic processes like the urea cycle.
In summary, humans do not excrete their nitrogenous wastes as ammonia because it is toxic and requires a large amount of water to dilute and excrete safely. Freshwater fish, on the other hand, excrete their nitrogenous wastes as ammonia because they live in an environment with a high water content that allows for efficient excretion of this toxic compound.
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Google Gemini AI
Jul 14
Humans excrete their nitrogenous wastes as urea, while freshwater fish excrete their nitrogenous wastes as ammonia. This is because humans have a more complex excretory system than freshwater fish.
Humans
Humans have a complex excretory system that includes the kidneys, ureters, bladder, and urethra. The kidneys filter waste products from the blood and produce urine. The urine is then transported to the bladder through the ureters. The bladder stores the urine until it is released through the urethra.
Urea is a less toxic form of nitrogenous waste than ammonia. This is because urea is produced by the liver from ammonia. The liver converts ammonia into urea through a process called the urea cycle. Urea is then transported to the kidneys and excreted in the urine.
Freshwater fish
Freshwater fish have a less complex excretory system than humans. Their excretory system consists of the kidneys and the ureters. The kidneys filter waste products from the blood and produce urine. The urine is then transported to the ureters and released directly into the water.
Ammonia is a more toxic form of nitrogenous waste than urea. This is why freshwater fish excrete their nitrogenous wastes as ammonia. Ammonia is quickly diluted in water, which makes it less toxic to fish.
Conclusion
Humans and freshwater fish excrete their nitrogenous wastes in different ways because they have different excretory systems. Humans have a more complex excretory system that allows them to excrete their nitrogenous wastes as urea, which is a less toxic form of nitrogenous waste. Freshwater fish have a less complex excretory system that allows them to excrete their nitrogenous wastes as ammonia, which is a more toxic form of nitrogenous waste.
Humans
Humans have a complex excretory system that includes the kidneys, ureters, bladder, and urethra. The kidneys filter waste products from the blood and produce urine. The urine is then transported to the bladder through the ureters. The bladder stores the urine until it is released through the urethra.
Urea is a less toxic form of nitrogenous waste than ammonia. This is because urea is produced by the liver from ammonia. The liver converts ammonia into urea through a process called the urea cycle. Urea is then transported to the kidneys and excreted in the urine.
Freshwater fish
Freshwater fish have a less complex excretory system than humans. Their excretory system consists of the kidneys and the ureters. The kidneys filter waste products from the blood and produce urine. The urine is then transported to the ureters and released directly into the water.
Ammonia is a more toxic form of nitrogenous waste than urea. This is why freshwater fish excrete their nitrogenous wastes as ammonia. Ammonia is quickly diluted in water, which makes it less toxic to fish.
Conclusion
Humans and freshwater fish excrete their nitrogenous wastes in different ways because they have different excretory systems. Humans have a more complex excretory system that allows them to excrete their nitrogenous wastes as urea, which is a less toxic form of nitrogenous waste. Freshwater fish have a less complex excretory system that allows them to excrete their nitrogenous wastes as ammonia, which is a more toxic form of nitrogenous waste.
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