English: This figure depicts fimbriae adhesion. In this process the fimbriae of a bacterial cell adheres to specific proteins called receptors, found on the outer membrane of the host cell. They do this through a specific interaction between the receptors of the host cell and the perfectly matched adhesions found on the bacteria’s fimbriae. This process of adhering bacterial cells to a host cell, can lead to the colonization of that host cell as more and more bacterial cell collect around them, and is integral to the continued survival of the bacteria as it goes on to infect tissues and entire organs.