Bacterial cell wall is composed of peptidoglycan,a complex of oligosaccharides and proteins. The oligosaccharide component consists of

  • A
    linear chain of alternating $NAG$ and $NAM$ linked by $\alpha \,(1-4)$ linkage
  • B
    linear chains of alternating $NAG$ and $NAM$ linked by $\beta \,(1-4)$ linkage
  • C
    linear chain of glucose linked by $\beta \,(1-4)$ linkage
  • D
    linear chain of glucose linked by $\alpha \,(1-4)$ linkage

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Chemosynthetic autotrophic bacteria like $Nitrosomonas$ obtain energy from $........$ for their $\text{ATP}$ production.

Organisms which obtain energy by the oxidation of reduced inorganic compounds are called

$A$: Bacillus and Coccus types of bacteria are found in colonial forms.
$R$: In bacteria,cells formed by cell division remain surrounded by a secreted slimy substance.

Most bacteria are . . . . . . .

In the five-kingdom classification of Whittaker,kingdom $Monera$ is the group of microorganisms. Among the following statements,find out the incorrect statement for bacteria.

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