Q 3. a) Which is the major nitrogenous waste product in a human being? How is it removed from the body?b) What is dialysis?
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a) The major nitrogenous waste product in human beings is urea - mainly excreted as urine.
b) Urea is excreted from the blood circulation by ultra-filtration in the kidneys. It is this filtrate that forms urine which is then excreted via the urinary organs.
c) Dialysis is the process by which blood is purified by removal of toxins and wastes such as urea, excessive electrolytes, poisons, excessive drugs and salts. This is done by use of external, artificial kidney(a dialysis machine)
b) Urea is excreted from the blood circulation by ultra-filtration in the kidneys. It is this filtrate that forms urine which is then excreted via the urinary organs.
c) Dialysis is the process by which blood is purified by removal of toxins and wastes such as urea, excessive electrolytes, poisons, excessive drugs and salts. This is done by use of external, artificial kidney(a dialysis machine)
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Answer:- The major nitrogenous waste product in human beings is urea. Urea is removed or eliminated from the body through urine.
(B) The process of removing waste products and excess fluid from the body. This is called Dialysis. It is necessary when the kidneys are not able to adequately filter the blood.
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