Which type of cells are recognized for having pili for adhesion?

Prokaryotic cells are recognized for having pili, which are hair-like structures that extend from their surfaces and play a crucial role in adhesion to surfaces and other cells. These structures are especially important for bacteria, as they facilitate attachment to host tissues during infection, biofilm formation, and the exchange of genetic material between cells through a process known as conjugation.

Pili allow prokaryotic cells to adhere to various environments, enhancing their survival and ability to establish infections. In contrast, eukaryotic cells do not typically possess pili; instead, they may use different mechanisms, such as proteins on their surfaces or other structures like flagella or cilia, for adhesion and movement.

Understanding the distinct characteristics of prokaryotic cells, including the presence of pili, is essential in microbiology and medical biochemistry, as it influences the behavior of bacteria in disease and treatment contexts.