MICROANATOMY

Detailed explanation-1: -Flagella (singular = flagellum) are long, hair-like structures that extend from the plasma membrane and are used to move an entire cell, (for example, sperm, Euglena). When present, the cell has just one flagellum or a few flagella.

Detailed explanation-2: -Artificial bacterial flagella are nonbiological structures whose design is based on that of bacterial flagella. They are actually metallic and consist of two parts: a square, flat head and a helical tail.

Detailed explanation-3: -The long part of the flagellum is made of a protein called flagellin-who would have guessed? This protein is arranged as individual helical threads which wrap around one another to form a braid and the braids wrap around one another to form a filament (like threads and braids which form a rope).

Detailed explanation-4: -The most common appendages used for getting around, however, are flagella (singular: flagellum). These tail-like structures whip around like propellers to move cells through watery environments.