Excavata Flashcards
1
Q
What is excavata?
A
a eukaryotic super group
- > synapomorphy is a feeding groove used in phagocytosis
- > has a secondary loss of mitochondria
- > many are anaerobes or parasites
- > Often lives inside a host w/o damaging the host
2
Q
Jakobea
A
class
- > heterotrophs in water or soil
- > not pathogenic
- > genes resemble bacterial genes
3
Q
metamonada
A
phylum
- > anaerobic, w/o mitochondria (mitochondriate)
- > SYNAPMORPHY (flagella attached to nucleus)
- > diplomenads have two sets of flagella/nucleus)
- > endosymbotic in animals to digest cellulose
- > secondary loss of feeding grove
4
Q
Euglenoza
A
phylum
- > mix of hetro and phototrophs
- > Pollution tollerent
- > mostly found in fresh water
- > divides via protomitosis
5
Q
Euglephyta
A
Euglenoza with chlorplasts
- > secondary chloroplast with 3 membranes
- > pigments chlorophyll a, b and carotenoid
- > has tinsel and whiplash flagella
- > some only photosynthiss when conditions are rights via there light sensing eye
6
Q
Kinetoplastids
A
Euglenoza w/o chloroplasts
- > Heterotrophic eats bacteria
- > many are parasites
- > dna found at the base of flagella
7
Q
How do excavates move?
A
> no cell wall, has pellicle
->ridges that allow squishing movement
8
Q
Euglenids: Applied Science
A
found in toxic blooms
- > water quality indicator
- > polution tollerent
