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Question
The accessory excretory human organs are:
The accessory excretory human organs are:
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Solution
The correct option is D Skin, lungs and liver
The skin, lungs and liver of vertebrates are accessory excretory organs. Human skin possesses glands for secreting two fluids on it's surface, namely sweat from the sweat glands and sebum from sebaceous glands. The lungs give out carbon dioxide. Ammonia is a nitrogenous by-product which is formed due to the metabolism of amino acids. Ammonia is extremely toxic and it's accumulation in the body would be fatal. The liver converts the ammonia into urea.
Skin, lungs and liver
The skin, lungs and liver of vertebrates are accessory excretory organs. Human skin possesses glands for secreting two fluids on it's surface, namely sweat from the sweat glands and sebum from sebaceous glands. The lungs give out carbon dioxide. Ammonia is a nitrogenous by-product which is formed due to the metabolism of amino acids. Ammonia is extremely toxic and it's accumulation in the body would be fatal. The liver converts the ammonia into urea.
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