Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025
Definition
Euglenozoa are a diverse group of unicellular eukaryotic organisms that include both free-living species and important parasites. They are characterized by the presence of a unique flagellum structure and a flexible pellicle.
5 Must Know Facts For Your Next Test
Euglenozoa include both photosynthetic species like Euglena and parasitic species like Trypanosoma.
They possess a unique flagellum with a paraflagellar rod, which is distinctive to this group.
The flexible pellicle allows them to change shape, aiding in their movement through various environments.
Trypanosoma brucei, a member of Euglenozoa, causes African sleeping sickness in humans.
They have complex life cycles that often involve multiple hosts or stages.
Review Questions
Related terms
Flagellum: A whip-like structure used for movement found in many microorganisms.
Pellicle: A flexible outer covering that provides shape and protection to some protists.