Class 12th Biology 2014 Set3 Delhi Board Paper Solution

Question 21

What are methanogens? Name the animals in which methanogens occur and the role they play there.

Answer

Methanogens are anaerobic bacteria that produce methane from organic matter. Example: Methanobacterium

Methanogens are commonly found in the rumen of cattle and help in cellulose digestion. Hence, excreta of cattle (gobar) is rich in methanogens.