One of the major diagnostic characteristics that distinguishes archaea from bacteria is the absence of
A) peptidoglycan cell walls in archaea.
B) peptidoglycan cell walls in bacteria.
C) ribosomes in archaea.
D) chemoautotrophy in bacteria.
E) pseudopeptidoglycan cell walls in archaea.

Question

Quizplus · Accepted Answer

Archaea lack peptidoglycan cell walls, which are a common feature of bacterial cell walls. Instead, many archaeal cell walls are composed of pseudopeptidoglycan, which is structurally distinct from peptidoglycan.

One of the Major Diagnostic Characteristics That Distinguishes Archaea from Bacteria