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41 Cards in this Set
- Front
- Back
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Are Protists have a membrane-bound nucleus, meaning?
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They are ALL Eukaryotic
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What are protists' body structure?
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They can be either unicellular or multicellular
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Protist's food/energy source?
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Autotrophs or Heterotrophs
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The three main groups of protists
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Animal-like
Plant-like Fungi-like |
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What is another name for animal-like protists?
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Protizoans
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How do animal-like protists get their energy?
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Heterotrophically. Similar because animals also can't their own energy - must get from others.
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Are animal-like protists able to move?
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yes
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How are animal-like protists different than real animals?
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Animal-like protists are unicellular
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Animal- like protists can be broken down in to 4 categories. What are they?
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Protists with Pseupods
Protists with Cilia (ciliates) Protists with flagella and Others - meaning the way the live - all of theses are PARASITES. |
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What is a pseupod?
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basically "false feet"
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What is the best known example of a pseupod?
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An Amoeba
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How does an amoeba catch its food?
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uses cytoplasmic streaming to engulf food particles
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Describe the movement of an Amoeba
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Flowing, stretching tendrils (pseupods) by cytoplasmic streaming
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How do protists with Cilia move?
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By beating tiny hair-like structures called cilia
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What is a good example of a protist with cilia?
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Paranecium
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How do protists with flagella move?
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by beating their long whip-like structures called flagella
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What is a good example of a protist with flagella?
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Giardia (giardia lamblia)
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The life cycle of giardia lamblia
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1. cyst in feces (ex. deer)
2. ingested by host (you) 3. Feed on & multiply in intestines 4. Form new cysts |
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What is another name for the disease caused by giardia lamblia?
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Beaver fever
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Some symptoms of someone suffering from Giardia?
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diarrhea, bloating, nausea
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An example of a parasite?
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Plasmodium
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Life cycle of malaria
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1. Host #1 - Mosquito
2. Mosquito 3. cyst travels to liver and multiplies 4. malaria bursts out of liver and into red blood cells 5. malaria reproduces in red blood cells 6. human bit by mosquito 7. mosquito infected |
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What human organ does malaria affect the most?
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Liver
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What are the characteristics of fungus-like protists?
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heterotroph
cell wall reproduce by spores motile at some point in life cycle |
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What are the three types of fungus-like protists?
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water mold
downy mildew slime mold |
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characteristics of water molds and downy mildews?
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-live in H2O/moist environment
-thread like, fuzzy -attack food: damages crops |
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characteristics of slime molds
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-moist soil
-colourful -move via pseupods -feed on bacteria/micro-organisms |
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How do plant-like protists obtain their energy?
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They are autotrophs (photo/chemosynthesis)
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Where can plant-like protists live?
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soil, bark, salt & fresh water
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Two reasons why plant-like protista are important to the earth?
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take CO2 and turn it into O2
base of the aquatic food chain |
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Body structure of plant-like protista?
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uni or multicellular or live in colonies
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What are the four main plant-like protists?
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-euglenoids
-dinoflagellates -diatoms -algae |
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Main characteristics of Euglenoids?
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photosynthetic, saprophytic (eat dead things), asexual (looks like a tampon)
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Main characteristics of Dinoflagellates?
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-unicellular
-stiff plates -2 flagella -glow in the dark |
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main characteristics of diatoms?
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-glass-like cell walls ("glass houses")
-unicellular |
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What are the three subcategories of algae?
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Green algae, red algae, and brown algae
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Main characteristics of green algae
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-contain chlorophyll = photosynthesis (green pigment)
-uni/multicellular or in colonies -on land and aquatically (lichen) |
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main characteristics of red algae
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red pigment
simple and branched filaments rubbery multi-cellular |
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main characteristics of brown algae
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brown pigment
multicellular |
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What are red tides?
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basically, an algal bloom caused by dinoflagellates
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Why are red tides harmful to the environment?
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Filter-feeding shellfish become poisonous for human consumption. At high concentrations, the toxins released by red tide can kill off large populations of marine-life.
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