Question

Archaebacteria differ from eubacteria in:

Answer 1

Archaebacteria differ from eubacteria in the cell membrane structure.

The cell membrane/plasma membrane is composed of phospholipids.

The phospholipids in the plasma membrane of eubacteria are organized into two layers, forming a phospholipid bilayer.

However, in archaebacteria, the opposing phospholipids in the plasma membrane join forming a monolayer. This feature might be responsible for stabilizing the plasma membrane at high temperatures, thus allowing them to survive in extreme environmental conditions.