Question

Choose the correct statement :-
(1) Archaebacteria differ from other bacteria in having a different cell
wall structure
(2) Mycoplasma differ from other bacteria in having a different type of
flagella movement
(3) Cyanobacteria differ from other bacteria in having chemosynthetic
autotrophic nutrition
(4) Eubacteria differ from other bacteria because they do not play any
role in recycling of nutrients​

Answer 1

Archaebacteria generally have the same shape, size, nutrition and appearance as bacteria. They multiply by means of binary fission.

However, archaebacteria cell walls do not contain peptidoglycan. They also have different membrane lipid bond as compared to the bacteria and eukarya. Archea membrane lipids have ether bonds whereas bacteria has ester-linked lipids.

Thus, the correct answer is option A.

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