Organisms And Population Question 218

Question: In nitrogen cycle, which of the following plays an important role

Options:

A) Rhizopus

B) Nitrobacter

C) Mucor

D) All green algae

Show Answer

Answer:

Correct Answer: B

Solution:

Nitrobacter is a $ N_2 $ fixing organism, it fixes atmospheric free $ N_2 $ into soluble salts like nitrites and nitrates.

The fixed $ N_2 $ is absorbed by plants when herbivores feed on these plants, the $ N_2 $ flows on the carnivores through food chain hence it is important for the $ N_2 $ cycle.