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PART - 2 - Unit V : CH - 16 Excretory Products and Their Elimination — BIOLOGY STD 11 Science — Question

Rajasthan BoardEnglish MediumSTD 11 ScienceBIOLOGYPART - 2 - Unit V : CH - 16 Excretory Products and Their Elimination3 Marks
Question
What is excretion? Write any four differences between ammonia and uric acid excretion.
✓

Answer

Excretion : The process of removing nitrogenous waste materials from the body through the excretory organs is called excretion.
Differences between ammonia and uric acid excretion:
S. No.Ammonia Acid ExcrectionUric Acid Excrection
1.Nitrogenous waste material is expelled in the form of mmonia.Whereas it is expelled in the form of uric acid.
2.The emitted substance $(NH_(3))$ is highly toxic.Whereas uric acid is less toxic.
3.A large part of the body's water is lost.Very little water is consumed.
4.Very little energy is used in the production of ammonia.A lot of energy is used in the production of uric acid.
5.Examples : Amoeba, hydra and paramecium.Examples : Birds, insects, reptiles.

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