What are flagella?

Flagella are slender, hair-like extensions that serve as appendages for locomotion in various organisms, such as bacteria, protozoa, and some plant and animal cells. Their structure allows for movement by rotating like a propeller or whipping back and forth, enabling the organism to swim through liquid environments.

This characteristic makes flagella vital for motility, which is crucial for certain microorganisms in their search for nutrients, reproduction, and evasion from predators. The presence of flagella is an adaptation that enhances an organism's ability to thrive in diverse environments. Recognizing the role of flagella in locomotion is essential in the study of cellular biology and microbiology, as it provides insights into the movement mechanisms of various life forms.