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The following substances are the excreto...

The following substances are the excretory products in animals. Choose the least toxic from among them

A

Urea

B

Uric acid

C

Ammonia

D

Carbon dioxide

Text Solution

Verified by Experts

The correct Answer is:
B
Ammonia, urea and uric acid are the major forms of nitrogenous wastes excreted by the animals 
Ammonia is the most toxic form and requires a large amount of water for its elimination, whereas uric acid, being the least toxic, can be removed with a minimum 'loss of water, Nitrogenous waste substances (`NH_(3)`, Urea and Uric acid) are produced during the metabolism of protein.
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A2Z-EXCRETORY PRODUCTS AND THEIR ELIMINATION-Section A : Topicwise Questions Topic 1 :human Excretory System
  1. The following substances are the excretory products in animals. Choose...

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  2. Find out the name of the following: a. A chordate animal having fla...

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  3. Different types of excretory structure and animals are given below . M...

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  4. Which one of the following statements is incorrect?

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  5. Terrestrial amphibians and marine fishes are

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  6. Major form(s) of nitrogenous wastes excreted by the animals is/ are

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  7. Read the following statements and find out the incorrect statements. ...

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  8. Protonephridia or flame cells or solenocytes are the excretory structu...

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  9. In humans ,excretory system consists of a. Kidney " " b.Urinary b...

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  10. which one of the following statements is incorrect?

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  11. Recognise the figure and find out the correct matching .

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  12. Kidneys are reddish brown and

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  13. Kidneys are situated close to the dorsal inner wall of the abdominal c...

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  14. Length, width and thickness of the adult human kidney are approximatl...

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  15. Average weight of kidney is about

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  16. Towards the center of the inner concave surface of the kidney a notch ...

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  17. Each nephron has

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  18. Renal tubule begins with the

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  19. The DCTs of many nephrons open into a straight tube called

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  20. Many collecting ducts converge and through medullary pyramids in the ...

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