Ques. Which one of the following is wrong statement?
A. Anabaena and Nostoc are capable of fixing nitrogen in free-living state also.
B. Root nodule forming nitrogen fixers live as aerobes under free-living conditions.
C. Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins.
D. Nitrosomonas and Nitrobacter are chemoautotrophs.
Answer:C
Ques. Which one of the following is wrong statement?
A. Anabaena and Nostoc are capable of fixing nitrogen in free-living state also. B. Root nodule forming nitrogen fixers live as aerobes under free-living conditions. C. Phosphorus is a constituent of cell membranes, certain nucleic acids and all proteins. D. Nitrosomonas and Nitrobacter are chemoautotrophs.