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What is Excretion in biology?

GeneralClass 12AllAnswered 27 Mar 2026
Answer

All living organisms need to maintain the normal functioning of the body. For this maintenance purposes living organisms perform four basic life processes namely- Nutrition, Respiration, Transportation and excretion.Thereby excretion is one of the life processes. Each of the life processes is connected very intricately to each other. When the body digests food and transports the nutrients throughout the body, there is some amount of waste that gets generated in our body. Thai waste is removed from our body by the means of excretion.

On basis of the excretory products organisms can be classified into categories like ammonotelic -the ones which excrete out ammonia. Ureotelic- those who excrete out urea as excretory product. 

FAQ

  1. What is excretion in Human?

All living organisms need to maintain the normal functioning of the body. For this maintenance purposes living organisms perform four basic life processes namely- Nutrition, Respiration, Transportation and excretion.Thereby excretion is one of the life processes. Each of the life processes is connected very intricately to each other. When the body digests food and transports the nutrients throughout the body, there is some amount of waste that gets generated in our body. Thai waste is removed from our body by the means of excretion.

On the basis of the excretory products we can classify organisms into categories like ammonotelic -the ones which excrete out ammonia. Ureotelic- those who excrete out urea as excretory products. Humans are ureotelic in nature that they excrete out urea from the body.A pair of Kidney play immense role in the due process of excretion.

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