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NOTES: Protists
Reference: Chapter 20-1
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What is a protist?
A protist is any organism that is NOT a plant, an animal, a fungus or a prokaryote.
Protists are
eukaryotes:
One cell or many
cells?
Protista:
Eukaryotes have a nucleus and organelles!
How do we classify
protists?
Animal Like Protists:
Plant Like Protists:
Most protists are unicellular (one cell), but some protists can be multicellular (more than one cell)
Means “the very first” in Greek. Why? The first Eukaroytic organisms on Earth, were protists!
What they eat or their way of obtaining nutrients:
Heterotrophs-animal like protists
Autotrophs-plant like protists
Decomposers or parasites-fungus like protists
Kingdom Protista
Zooflagellates: swim with flagella
Sarcodines: move by extensions of cytoplasm called pseudopods
Ciliates: move by cilia, short hairlike projections
Sporozoans: don’t move at all
Euglenophytes: chloroplasts, flagella
Chrysophyta: yellow green & golden brown algae, (gold color)
Diatoms: jewel like
Dinoflagellates: flagella, and are luminescent (give off light when agiated)
Red, Green Brown Algae
Fungus Like Protists:
Slime Molds
Water Molds
Vocabulary:
Cilia: Hair-like projections that beat rhythmically to move the protist
Flagella: Tail-like appendage that assists the protist in swimming
Diseases caused by
Protists:
Malaria, Potato Famine, Amebic Dysentery, African Sleeping Sickness