Which of the following are found in extreme saline conditions?
A.
Eubacteria
B.
Cyanobacteria
C.
Mycobacteria
D.
Archaebacteria
Answer :
Archaebacteria
Solution :
Archaebacteria are able to survive in harsh conditions due to the presence of branched lipid chain in cell membrane that reduces fluidity of cell membrane.
It includes halophiles which are exclusively found in saline habitats. Notes : The halophiles, named after the Greek word for “salt-loving”, are extremophiles that thrive in high salt concentrations. While most halophiles are classified into the domain Archaea, there are also bacterial halophiles and some eukaryotic species, such as the alga Dunaliella salina and fungus Wallemia ichthyophaga.
Releted MCQ Question on Botany >> Biological Classification
Releted Question 1
Pick up the wrong statement
A.
Protista have photosynthetic and heterotrophic modes of nutrition
In the five-kingdom system of classification, which single kingdom out of the following can include blue green algae, nitrogen-fixing bacteria and methanogenic archaebacteria?