1.

Which of the following bacteria cannot fix atmospheric nitrogen?(a) Nostoc(b) Anabaena(c) Oscillatoria(d) LactobacillusI have been asked this question in class test.This intriguing question comes from Microbes as Biofertilizers topic in section Microbes in Human Welfare of Biology – Class 12

Answer»

Right choice is (d) Lactobacillus

Easiest explanation: Cyanobacteria are AUTOTROPHIC microbes widely distributed in aquatic and TERRESTRIAL ENVIRONMENTS many of which can fix atmospheric NITROGEN like NOSTOC, Anabaena and Oscillatoria.



Discussion

No Comment Found

Related InterviewSolutions