Chapter 10.4 - Protists Flashcards
What is a protist
Eukaryotic organisms that can’t be classified as animals, plants or fungi
Do protists have a wide variety of characteristics
Yes
Where do protists live
In moist environments
True or false, all protists cause diesese
False, most are harmless but some can cause diesese
What are the defining features of animal-like protists
Food - heterotrophs
Features - unicellular
Movement - freeswimming
Reproduction - asexual and sexual
Common name - protozoans
What are the 4 phyla of animal-like protists
Zooflagellates
Sarcodines
Ciliates
Sporozoans
How are the different phyla of animal-like protists classified
By their means of movement
How do each of the animal-like protists move
Zooflagellates swim with their flagella
Sarcodines move by extensions of their cytoplasm
Ciliates move by means of cilia
Sporozoans don’t move on their own at all
What are the traits of zooflagellates
Animal-like protists
Swim using flagella
Classified in the phylum zoomastigina
What are the traits of sarcodines
Animal-like protists
Use pseudopods(temporary cytoplasmic projections) for feeding and movement called amoebid movement
Ex; amoebas
What are the traits of ciliates
Animal-like protists
Use cilia for feeding and movement
Classified in the phylum ciliophora
What are the traits of sporozoans
Animal-like protists
Do not move on their own
Parasitic
What are the four kinds of animal-like protists and diesese
Malaria
African sleeping sickness
Amebic dysentary
Giardia
What is malaria
Caused by sporozoan plasmidium
Carried by the female anopheles mosquito
What is african sleeping sickness
Caused by zooflagellate trypanosoma through the bite of the tsetse fly
What is amebic dysentary
Caused by parasitic amoeba entamoba
Typically passed through poor water sanitation
What is giardia
Caused by flagellated pathogen giardia
Symtoms included diarrhea and digestive problems
What are the traits of plant-like protists
Food is autotrophs
Features are unicellular or multicellular
Movement is freeswimming or attached
Reproduction is sexual and asexual
Common name is algae(unicellular) and seaweed(multicellular)
What are the fourplantlike protist phyla
Euglenophytes - 2 flagella but no cell wall
Chrysophytes - gold colored chloroplasts
Diatoms - produce thin delicate cell walls rich in silicon(SI) which is the main component in glass
Dinoflagellates - half are photosynthetic half are heterotrophic
What are the traits of fungi-like protists
Food is heterotrophs
Features are unicellular; butoften live in colonies, fungus-like protists have centrioles, lack chitin cell walls true of fungi
Movement is during some part of their life cycle
Reproduction is asexual
What is slime mold
Fungus-like protists
Play a key role in recycling organic matter
Use spores to reproduce at some point in their life cycle
What are water molds
Fungus-like protists
Oomycetes thrive on dead or decaying organic matter in water
Some are plant parasites on land
