Question

all Eubacteria have - (a) cell wall ( b) flagella (c) heterocyst (d) All the above​

Answer 1

All Eubacteria have a cell wall.

Cell Wall:

• A cell wall is the outermost layer of most plant and bacterial cell.
• Some species of archaebacteria (primitive bacteria) lack a cell wall.
• All eubacteria have a cell wall made of peptidoglycan.

Flagella:

• Flagella is a long unbranched structure used in locomotion.
• Some eubacteria may have flagella, some may have short proteinaceous extensions called pili.
• Eubacteria like nostoc lack any such locomotory structures.

Heterocyst:

• Hetrocyst is specialized cells present in a few nitrogen-fixing eubacteria.
• These cells provide anaerobic conditions for the action of the enzyme nitrogenase.