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Azotobacter bacterium is anaerobic/aerob...

Azotobacter bacterium is anaerobic/aerobic free living `N_2` -fixer.

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To determine whether Azotobacter is anaerobic or aerobic, we can follow these steps: ### Step-by-Step Solution: 1. **Identify the Type of Bacterium**: - Azotobacter is a type of bacterium known for its ability to fix nitrogen. 2. **Understand Nitrogen Fixation**: ...
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Name two free living N_2 - fixing bacteria.

Give one example of free -living N_2 fixing bacteria.

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 .

(i) Anabaena lives symbiotically with Azolla. (ii) Azotobacter is a free-living N_(2) fixer in the soil. Which of the statements given above is/are correct?

Which of the following is not a free living N_2 - fixing bacterium?

Anaerobic and aerobic respiration release

The bacterium capable of anaerobic N_2 fixa-tions known as