The whole structure of
Euglena was irregular and spontaneously pulsating, i.e. exhibiting a rhythmic motion of expansion and contraction. It moves with
the help of flagellum which was about the length of the body and located on the anterior end and twirls in such a way as to pull
the cell through the water, it was attached to the bottom of the reservoir. The colour of the reservoir was grey and the flagellum
was black. Chloroplast was visible as several disc-like structures throughout the cell with laciniate margins which trap sunlight
used for photosynthesis and the colour of it was green.