NEET BIOLOGY

Detailed explanation-1: -Euglena is a unicellular organism that belongs to the Kingdom Protista and the Phylum Euglenophyta. Euglena move by using a flagellum, a long whip-like structure that functions as a small motor. The flagellum, which is located on the cell’s anterior (front) end, twirls to propel it through the water.

Detailed explanation-2: -Flagellates (subphylum mastigophora) are single-celled protozoa that move using flagella.

Detailed explanation-3: -Role of Flagella in Locomotion: In Euglena, the movement of flagella commonly involves the generation of waves that are transmitted along it, either in a single plane or in a corkscrew pattern. The waves arise at the base of the flagellum, from the wall of the reservoir, apparently by two roots.

Detailed explanation-4: -The locomotory organs of protozoa are cilia, flagella and pseudopodia. Cilia are the hair-like short cell organelle extending from the cell surface. Cilia bearing protozoan is Paramecium.