There are two copies of each autosome (chromosomes 1-22) in both females and males. The sex chromosomes are different: There are two copies of the X-chromosome in females, but males have a single X-chromosome and a Y-chromosome.
Euglena move by a flagellum (plural â flagella), which is a long whip-like structure that acts like a little motor. The flagellum is located on the front end, and twirls in such a way as to pull the cell through the water. Color the reservoir grey and the flagellum black. Chloroplasts within the Euglena trap sunlight that is used for photosynthesis, and can be seen as several rod-like structures throughout the cell.
Most Euglena are considered mixotrophs: autotrophs in sunlight and heterotrophs in the dark. Euglena do not have plant cell walls, but have a pellicle instead. The pellicle is made of protein bands that spiral down the length of the Euglena and lie beneath the plasma membrane.hen acting as a heterotroph (animal), the Euglena surrounds a particle of food and consumes it by phagocytosis. When acting as an autotroph, the Euglena uses chloroplasts to produce sugars by photosynthesis. The number and shape of chloroplasts within Euglena varies greatly.