Rhizobium lives as an aerobic microbe under free living conditions but gets adapted to anaerobic conditions during nitrogen fixation.

True

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False

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Solution

The correct option is A
True

Rhizobium is free living aerobic soil bacterium and cannot fix nitrogen independently. When it enters into roots of legumes, it can fix nitrogen by adapting to the anaerobic conditions.

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Similar questions

Rhizobium lives as an aerobic microbe under free living conditions but gets adapted to anaerobic conditions during nitrogen fixation.

(a)	Nitrobacter	(i)	Free living aerobic nitrogen fixer
(b)	Clostridium	(ii)	Converts ammonia into nitrite
(c)	Nitrosococcus	(iii)	Changes nitrite to nitrate
(d)	Azotobacter	(iv)	Free living anaerobic nitrogen fixer

(A) Nitrobacter	(i) Free living aerobic nitrogen fixing organism
(B) Clostridium	(ii) Converts nitrite to nitrates
(C) Nitrosococcus	(iii) Converts ammonia to nitrite
(D) Azotobacter	(iv) Free living anaerobic nitrogen fixing organism

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