Protists - Clade Excavata

Question 1

Excavata and Excavata Clades

Answer 1

Protist subgroups encompassing unicellular protists with mitochondria and distinctive flagella

Clades: Diplomonads, Parabasalids, and Euglenozoans

Question 2

Diplomonads

Answer 2

Clade Excavata

unicellular heterotrophic flagellates that lack plastids and inhibit anaerobic enviros

Many are parasitic

Question 3

Parabasalids

Answer 3

Clade Excavata

unicellular, heterotrophic flagellates that lack plastids and have mitochondria found in anaerobic environments

Ex) Tricomonas vaginalis responsible for vaginal infections

Question 4

Euglenozoans

Answer 4

Clade Excavata

A diverse clade including organisms with varied ecological roles of predatory heterotrophs,, photoautotrophs, and parasites

Have spiral or crystalline rods inside their falgella

Question 5

Kinetoplastids

Answer 5

In the Euglenozoans clade

have a single mitochondrion containing large mass of DNA known as a kinetoplast

Question 6

Euglenids

Answer 6

Clade Euglenozoans

have one or two flagella emerging from a pocket at one end of the cell