Several protists lacking mitochondria led to the
lineages of these organisms diverged before the
endosymbiotic event that gave rise to mitochondria
Kingdom Archaezoa-Protists that lack mitochondria
Subgroup: Diplomonads-have flagella, 2 separate
nuclei, no mitochondria, no plastids, & a simple
cytoskeleton.
Flagellates-Protists w/ flagella
Groups:
Euglenoids-anterior pocket/chamber, from 1/2 flagella
emerge
-Many are mixotrophic/heterotrophic,absorbing organic
molecules from their surroundings/engulfing prey by
phagocytosis
Kinetoplastids-single lrg mitochondrion associated w/
unique organelle(kinetoplast)
-Has kinetoplast(houses extranuclear DNA)
-Are symbiotic
-Some pathogenic to host
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