What is the primary function of flagella in prokaryotes?

The primary function of flagella in prokaryotes is to enable cell movement. Flagella are long, whip-like structures that extend from the surface of the cell and are made up of a protein called flagellin. They rotate or undulate to propel the prokaryotic cell through its environment, allowing it to navigate toward nutrients or away from harmful substances. This movement is crucial for survival and adaptation as it helps prokaryotes reach favorable conditions and avoid adverse ones.

While other functions are important within biological systems, such as the storage of genetic information, protection against desiccation, and waste removal, these are not the direct roles of flagella. Flagella specifically enhance motility, making them vital for the ecology and survival of prokaryotic organisms.