Unlike bacteria, archaea cell walls
do not contain peptidoglycan.
Archaea have different membrane
lipid bonding compared to Bacteria
and Eucarya.
Archaea have different metabolic pathways.
Metabolic differences:
Archaea are very metabolically diverse, so
they are hard to generalize.
Archaea do not use glycolysis pathway to
break down glucose (though they do use
similar pathways).
Many archaea do not have functional Kreb’s
cycle pathways (but some do).