Answer
1. Fimbriae: These are thin structures protruding the outside of the surface of bacteria body, and they are used by the bacteria to attach to the surfaces.
2. Pili: These are also thin filamentous structures which project from the cell wall and are used for attachment.
3. Capsule: This is a thick layer present outside the cell wall, and it is also used for attachment.
Pili and fimbriae are useful for formation of biofilms because they are filamentous structures.
Work Step by Step
1. Fimbriae: These are thin structures protruding the outside of the surface of bacteria body, and they are used by the bacteria to attach to the surfaces.
2. Pili: These are also thin filamentous structures which project from the cell wall and are used for attachment.
3. Capsule: This is a thick layer present outside the cell wall, and it is also used for attachment.
Pili and fimbriae are useful for formation of biofilms because they are filamentous structures.