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.