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Which of the following statements about ...

Which of the following statements about the nitrogen cycle are false ?
1. Rhizobium and Frankia cause nitrogen fixation in their independent free - living stage .
2. Azotobacter and Anabaena are anaerobic, symbiotic , free - living , nitrogen fixers.
3. Rhodospirillum is an aerobic , nitrogen -fixing microbe found in the root nodules of legumes .
4. Nitrobacter oxidizes nitrites to nitrates .

A

Nitrobacter

B

Nitrosomonas

C

Rhizobium

D

Azotobacter

Text Solution

Verified by Experts

The correct Answer is:
C
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