Question

Halophilic bacteria are able to survive in salt rich media due to

• A. Accumulation of halogens
• B. Bacteriorhodopsin
• C. Enzymes active at high levels of $KCI$ or $NaCI$
• D. All of the above

Answer 1

Answer: (D)

All of the above

Halophiles are the organisms which can survive in the regions with higher salt concentrations. The halophiles are the primitive bacteria which belong to the group of archaebacteria which accumulate the halogens like chloride ions. These bacteria possess a protein called as bacteriorhodopsin which can capture light, thus, helping in creating proton gradient to synthesize ATP by using sunlight. The enzymes produced by these organisms do not get denatured at high levels of salt.

Thus, the correct answer is option D.