Which of the following organisms does not participate in the nitrification process?

Biology Mcqs for PPSC, FPSC, NTS, and Pakistan government job tests. Select an option below, then read the explanation.

PPSCFPSCNTSPakistan govt jobs
Subject
Biology Mcqsbiology-mcqs
Published
11 May 2018
Last updated
28 May 2026

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Explanation

Nitrobacter and Nitrosomonas are key bacteria responsible for nitrification, converting ammonia to nitrites and then nitrates. Rhizobium, however, is involved in nitrogen fixation, not nitrification.

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