NEET BIOLOGY

Detailed explanation-1: -The flagella help an organism to move from one place to the other. In some organisms they act as sensory organs which detect temperature and pH changes. And some eukaryotes use flagellum to increase reproduction rates. Now it is also discovered that flagella are also used as a secretory organelle.

Detailed explanation-2: -Flagellum is primarily a motility organelle that enables movement and chemotaxis. Bacteria can have one flagellum or several, and they can be either polar (one or several flagella at one spot) or peritrichous (several flagella all over the bacterium).

Detailed explanation-3: -Flagella are primarily used for cell movement and are found in prokaryotes as well as some eukaryotes. The prokaryotic flagellum spins, creating forward movement by a corkscrew shaped filament. A prokaryote can have one or several flagella, localized to one pole or spread out around the cell.

Detailed explanation-4: -Flagellar movement, or locomotion, occurs as either planar waves, oarlike beating, or three-dimensional waves. All three of these forms of flagellar locomotion consist of contraction waves that pass either from the base to the tip of the flagellum or in the reverse direction to produce forward or backward movement.

Detailed explanation-5: -Functions of Flagella. Flagella can be found in prokaryotes and eukaryotes. They are long filament organelles made of several proteins that reach as much as 20 micrometers in length away from their surface on bacteria. Typically, flagella are longer than cilia and provide movement and propulsion.