While examining a rock surface, you have discovered an interesting new organism. Which of the following criteria will allow you to classify the organism as belonging to Bacteria but not Archaea or Eukarya?
A) Cell walls are made primarily of peptidoglycan.
B) The organism does not have a nucleus.
C) The lipids in its plasma membrane consist of glycerol bonded to straight-chain fatty acids.
D) It can survive at a temperature over 100°C.

Question

Quizplus · Accepted Answer

A) The presence of cell walls made primarily of peptidoglycan is a distinguishing feature of bacteria, as neither archaea nor eukaryotes have peptidoglycan in their cell walls.

While Examining a Rock Surface, You Have Discovered an Interesting