Which one of the following is a wrong statement?

  • A
    $Anabaena$ and $Nostoc$ are capable of fixing nitrogen in a free-living state also.
  • B
    Root nodule forming nitrogen fixers live as aerobes under free-living conditions.
  • C
    Vitamin is a constituent of cell membranes,certain nucleic acids,and cell proteins.
  • D
    $Nitrosomonas$ and $Nitrobacter$ are chemoautotrophs.

Explore More

Similar Questions

Arrange the following microbes/organisms in ascending order according to their complexity of body (from simple to complex):
$a$ - animal,$b$ - viroids,$c$ - bacteria,$d$ - virus,$e$ - algae.

In which of the following is the cell wall composed of cellulose or fungal-cellulose?

Plant decomposers are

Match the Column-$I$ and Column-$II$:
Column-$I$Column-$II$
$(i)$ Chrysophyta$(a)$ Fungi
$(ii)$ Gonyaulax$(b)$ Diatom
$(iii)$ Penicillium$(c)$ Plasmodium
$(iv)$ Slime mould$(d)$ Dinoflagellate

Identify the mismatched pair from the following:

Vedclass Products

For Students

Vedclass Test Series

Mock tests in real JEE/NEET style with performance analysis. 5-day free trial.

Start Free Trial
For Teachers

Exam Paper Generator

Generate Set A/B/C/D exam papers from 7.5L+ questions in 2 minutes. 3 chapters free.

Try Free
For Institutes

Online Exam Module

Live online exams with unlimited students, 360° analytics & white-label branding.

See Demo