Question

Archarbacteria with purple coloured pigment in cell membrane :

• A. Can survive in extreme saline conditions.
• B. Are chemoautotrophs
• C. Can use light energy to synthesize ATP
• D. Both (A) and (C)

Answer 1

The correct option is D Both (A) and (C)

Answer is option D i.e. "Both (A) and (C)"
Archarbacteria are salt loving bacteria that can live in strong salt solutions. Hence they are also called halophiles. In presence of strong sunlight they develop a purple colored pigmented membrane to utilize light energy producing ATP.