Question

In eubacteria, a cellular component that resembles eukaryotic cell is:

• A. Cell wall
• B. Plasma membrane
• C. Nucleus
• D. Ribosomes

Answer 1

The correct option is B Plasma membrane

Eubacteria are prokaryotic organisms. The plasma membrane of eubacteria is same as the plasma membrane of eukaryotic cells.

Cell walls are present in most prokaryotes (except mycoplasma bacteria), in algae, plants, and fungi but rarely in other eukaryotes including animals. In bacteria, the cell wall is composed of peptidoglycan.Prokaryotes have 70S ribosomes, each consisting of a small (30S) and a large (50S) subunit. Eukaryotes have 80S ribosomes, each consisting of a small (40S) and large (60S) subunit. Membrane-bound organelles like the nucleus are absent in prokaryotic eubacteria.