Excavata
Some members of this supergroup have an
"excavated" groove on one side of the cell body. Two major clades (the
parabasalids and diplomonads) have modified mitochondria; others (the
euglenozoans) have flagella that differ in structure form those other organisms.
Excavates include parasites such as Giardia, as well as many predatory and
photosynthetic species.
Diplomonads- have modified mitochondria callled
mitosomes. These organelles lack functional electron transport chains and hence
cannot use oxygen to help extract energy from carbohydrates and other
molecules.
"excavated" groove on one side of the cell body. Two major clades (the
parabasalids and diplomonads) have modified mitochondria; others (the
euglenozoans) have flagella that differ in structure form those other organisms.
Excavates include parasites such as Giardia, as well as many predatory and
photosynthetic species.
Diplomonads- have modified mitochondria callled
mitosomes. These organelles lack functional electron transport chains and hence
cannot use oxygen to help extract energy from carbohydrates and other
molecules.