NEET Botany Biological Classification Questions Solved

NEET - 2017

Which of the following are found in extreme saline conditions?

(1) Archaebacteria

(2) Eubacteria

(3) Cyanobacteria

(4) Mycobacteria

Audio Explanation:

(1) Archaebacteria are the most primitive form of bacteria. These live in diverse habitat, e.g. extreme hot temperature, saline condition, variable pH, etc. Saline bacteria are called Halophiles (e.g., Halobacterium, Halococcus).

Concept Enhancer The ability of archaebactena to survive in harsh conditions is due to the presence of branched lipid chain in their membrane, which reduces the fluidity of their membrane.

Difficulty Level:

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