NEET Biology question
Not in NEET syllabus
Read the following statements and select the correct answer. (i) *Rhizobium leguminosarum* was earlier known as *Bacillus radicicola*. (ii) Nitrifying bacteria (*Nitrosomonas*, etc.) are chemoautotrophs. (iii) Enzyme nitrogenase fixes N2 under aerobic conditions. (iv) Leghaemoglobin creates aerobic conditions for the enzyme nitrogenase.
Answer: (B)
Solution
Statement (i) is historically correct (*Rhizobium leguminosarum* was formerly classified as *Bacillus radicicola*). Statement (ii) is correct — nitrifying bacteria are chemoautotrophs, deriving energy from oxidising inorganic nitrogen compounds.
See the full step-by-step solution
Create a free account to read the complete working, and practise questions like this in a timed test.
Create a free account