
Bacterial endospores are


Important Questions on Biological Classification
Consider the given figure and find out the correct option:

How many statements are correct for the given organism in figure?
(i) Filamentous cyanobacteria as oxygenic photoautotroph.
(ii) Surrounded by mucilaginous sheath.
(iii) Heterocyst are specialized for N2 fixation.
(iv) Reproduce by hormogonia formation.

Select the incorrectly matched pair:

Select the features true for Mycoplasma:
(a) Has double-stranded circular DNA.
(b) Cannot survive in the presence of oxygen.

Consider the following statements and state true (T) and false (F):
(a) Bacteria cannot live in snow and deep oceans.
(b) Halophiles are found in marshy habitat and are nutritionally heterotrophs.
(c) Under unfavourable conditions bacteria produce several types of spores.
(d) Bacteria show autotrophic or heterotrophic nutrition.


