NEET BIOLOGY

Detailed explanation-1: -Many unicellular protists, particularly protozoans, are motile and can generate movement using flagella, cilia or pseudopods.

Detailed explanation-2: -Zooflagellates are a third type of protists. They are animal-like and move by using flagella. Flagella are whip-like structures that spin quickly, working like a boat’s propeller to move the organism through water. Most zooflagellates have from one to eight flagella that help them move.

Detailed explanation-3: -Protozoans That Move Using Flagellum A flagellum is a whip or tail-like organelle that extends out the surface of the cell. When a flagellate protist would like to move, it rotates its flagella (single or multiple) like a propeller, which propels the organism forward.

Detailed explanation-4: -Many protists take the form of single-celled flagellates. Flagella are generally used for propulsion. They may also be used to create a current that brings in food. In most such organisms, one or more flagella are located at or near the anterior of the cell, e.g., Euglena.