door Liz P 5 jaren geleden
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Ex: entamoeba histolytica
third leading cause of death
found in untreated water
parasitic
Cellular
move towards food
form aggregate colonies when facing starvation
Plasmodial
extend over its food
consume via phagocytosis
many diploid nuclei
Dulse
Nori = sushi
symmetrical cytoskeleton = silica
pseudopods "radiate" from them
used for phagocytosis
parasites and predators
most heterotrophic
porous, multichambered shells = tests
composed calcium carbonate
found in fossil record
contain haploid micro and macro nuclei
undergo conjugation and binary fission
move towards food w/cilia
Ex: Paramecium
Ex: (genus) Plasmodium
need humans and mosquitos
malaria
parasites to animals
most need two hosts to complete life cycle
spread with spores in host
two flagella
cause red tide (toxic for species)
cell wall = cellulose plates
Structure
blades (leaf-like)
stipe (stem-like)
holdfast
Ex: seaweed
Unique pigments
carotenoids
Ex: phytoplankton
silica cell wall
diatomaceous earth = fossils
Ex: euglenia
pocket w/ 1+ flagella
Ex: tryptosoma
Chaga's disease
sleeping sickness
DNA clump - kinetoplasts
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