What is a flagel?

Flagella are whip-like appendages found on some types of cells, particularly prokaryotic and eukaryotic cells. They are primarily used for movement, allowing the cell to propel itself through its environment. Flagella are typically made up of a protein called flagellin, arranged in a helical structure.

In prokaryotic cells, flagella rotate in a corkscrew motion to move the cell forward. In eukaryotic cells, such as sperm cells, flagella wave back and forth to propel the cell through a fluid environment. Flagella are also involved in sensory functions in some cells, helping to detect and respond to stimuli in the environment.

Flagella are found in a wide range of organisms, including bacteria, archaea, and some eukaryotic cells. They come in various shapes and sizes depending on the organism and its specific function. Flagella play a crucial role in the survival and adaptation of many organisms.