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Excretory Products and their Elimination

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Biology

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Biology

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CBSE Gujarat Board Haryana Board

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Class 10 Class 12

Distinguish between

(a) Ammonotelism, ureotelism and uricotelism


Ammonotelism

Ureotelism

Uricotelism

Ammonotelism occurs in aquatic animals.

Ureotelism occurs in terrestrial amphibians and some aquatic animals.

Uricotelism occurs only in terrestrial animals.

Ammonia is excreted

Urea is the major excretory product

Uric acid is the excretory product.

Ammonia is very toxic

Less toxic

Least toxic.

A lot of water is required for elimination of Ammonia.

Comparatively less water is required for elimination of urea.

Little water is required for elimination of uric acid. 

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 What is uremia ?

Uremia is the accumulation of urea in the blood due to the malfunctioning of the kidneys. The urea accumulation is harmful and may lead to kidney failure. 

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What is Bowman's capsule?

The double walled cup like structure present at the starting of the renal tubule is Bowman's capsule. It encloses the glomerulus capsule. 
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Name three uricotelic animals.

The uricotelic animals are
1. Birds
2. Reptiles
3. Insects

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What is glomerulonephritis ?

Glomerulonephritis is the inflammation of glomeruli of the kidney. 
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What is the ultimate method for the correction of acute renal failure?

Kidney transplant.
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