Home Biology Biological Classification Statement Based Questions Choose wrong statement for bacteria: (i) Met…
Biology Biological Classification Statement Based Questions Single Correct MCQ
Published on: August 14, 2026

Choose wrong statement for bacteria:

(i) Methanogens are present in the gut of several ruminant animals such as cows and buffaloes.

(ii) Some of the bacteria are autotrophich.

(iii) They may be photosynthetic autotrophic or chemosynthetic autotophic.

(iv) The vast majority of bacteria are heterotrophs.

(v) Eubacteria is halophiles, thermoacidophilesand methanogens.

(vi) Achaebacteria differ from other bacteria in having different cell membrane structure.

A
(iv), (v) and (vi)
B
(ii), (iv) and (vi)
C
(i), (ii), (iii) and (iv)
D
(v) and (vi)

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Text Solution

Verified by Experts
The correct answer is:
D

(i) Correct: Methanogens are indeed found in the gut of ruminants.

(ii) Correct: Some bacteria are autotrophic.

(iii) Correct: Bacteria can be photosynthetic or chemosynthetic autotrophs.

(iv) Correct: The vast majority of bacteria are heterotrophs.

(v) Wrong: Halophiles, thermoacidophiles, and methanogens are Archaebacteria, not Eubacteria.

(vi) Correct: Archaebacteria differ from other bacteria (Eubacteria) in having a different cell wall and membrane structure (ether-linked lipids).

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