Biology 1202 Exam 3 Questions and Answers| New Update with 100% Correct Answers
Supergroups of Kingdom Protista -Excavates
-Chromalveolates
-Rhizarians
-Archaeplastids
-Unikontes
Two major clades of the excavate supergroup -diplomonads
-parabasalids
Characteristics of excavates -move via flagella
-feeding grove
-heterotrophic and have modified mitochondria
clades of the excavates -diplomonads and parabasalids (largest)
-euglenozoans
Characteristics of diplomonads -free living and symbiotic
-two nuclei
-multiple flagella
Pathogenic member of the diplomonads Giardia- causes diarrhea and is contracted by
drinking untreated water.
Characteristics of parabasalids -anaerobic
-all known species are symbiotic, some are parasitic
, Pathogenic member of the parabasalids Trichomanas vaginalis- STD, males are often
asymptomatic
Characteristics of euglenozoans -distinct mitochondria
-move via flagella
-mixed nutritional methods(mixotrophic)
Major groups of euglenozoans euglenids and kinetoplastids
Characteristics of euglenids -most are freshwater dwelling
-have 1-3 flagella
-primarily photosynthetic, but can switch to heterotrophic in the dark
-many lack a rigid cell wall
-have a photoreceptor called an "eyespot"
Characteristics of kinetoplastids -single flagellum
-one large mitochondrion
-both free living and symbiotic
Parasitic member of the kinetoplastids trypanosoma which causes sleeping sickness
How are the chromalveolates thought to have arisen? through the secondary endosymbiosis
of red algae
Two major clades in the chromalveolate supergroup stramenopiles and alveolates
Four major groups of stramenopiles -oomycetes(water molds)
Supergroups of Kingdom Protista -Excavates
-Chromalveolates
-Rhizarians
-Archaeplastids
-Unikontes
Two major clades of the excavate supergroup -diplomonads
-parabasalids
Characteristics of excavates -move via flagella
-feeding grove
-heterotrophic and have modified mitochondria
clades of the excavates -diplomonads and parabasalids (largest)
-euglenozoans
Characteristics of diplomonads -free living and symbiotic
-two nuclei
-multiple flagella
Pathogenic member of the diplomonads Giardia- causes diarrhea and is contracted by
drinking untreated water.
Characteristics of parabasalids -anaerobic
-all known species are symbiotic, some are parasitic
, Pathogenic member of the parabasalids Trichomanas vaginalis- STD, males are often
asymptomatic
Characteristics of euglenozoans -distinct mitochondria
-move via flagella
-mixed nutritional methods(mixotrophic)
Major groups of euglenozoans euglenids and kinetoplastids
Characteristics of euglenids -most are freshwater dwelling
-have 1-3 flagella
-primarily photosynthetic, but can switch to heterotrophic in the dark
-many lack a rigid cell wall
-have a photoreceptor called an "eyespot"
Characteristics of kinetoplastids -single flagellum
-one large mitochondrion
-both free living and symbiotic
Parasitic member of the kinetoplastids trypanosoma which causes sleeping sickness
How are the chromalveolates thought to have arisen? through the secondary endosymbiosis
of red algae
Two major clades in the chromalveolate supergroup stramenopiles and alveolates
Four major groups of stramenopiles -oomycetes(water molds)
