Term
Protists are _____________.
(Prokaryotic or Eukaryotic) |
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Definition
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Term
Protists are _____________.
(Unicellular or Multicellular) |
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Definition
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Term
Protists are _______________ to plants, animals, and fungi.
(Ancestors or Decedents) |
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Definition
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Term
| Where do most protists live? |
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Definition
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Term
| How are protists classified? |
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Definition
| By how they obtain energy |
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Term
| What are the three main groups of protists? |
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Definition
1. Fungus-like
2. Plant-like
3. Animal-like |
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Term
| What are three reasons that protists are important? |
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Definition
1. Source of food
2. Provide Oxygen (Algae)
3. Used in products (toothpaste, food, etc.) |
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Term
| What are characteristics of fungus-like protists? |
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Definition
- Similar to fungi because of methods of reproduction and obtaining food
- Consumers obtain food from dead organic matter or from other organisms' bodies |
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Term
| Give two examples of fungus-like protists. |
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Definition
1. Slime molds
2. Water molds |
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Term
| What are the characteristics of slime molds? |
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Definition
- Decompose materials
-Unicellular, but may form a community
* communities: Many nuclei and one large cytoplasm |
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Term
| What are characteristics of water molds? |
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Definition
- Decomposers/parasite
- Unicellular
- Can cause diseases
* Ex. potato blight, ick |
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Term
| What are some characteristics of plant-like protists? |
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Definition
- Producers- have chlorophyll (photosynthesis)
- Some are multicellular (seaweed/kelp)
- Some are unicellular
* Called phytoplankton
~ Microscopic, float near surface of water
~ Produce most of world's Oxygen |
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Term
| What are some examples of plant-like protists? |
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Definition
- Red algae
- Brown algae
- Green algae
- Diatoms
- Dinoflagellates
- Euglenoids |
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Term
| What are some characteristics of Red algae? |
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Definition
| - Multicellular - Red pigment allows absorption of light even in very deep water |
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Term
| What are some characteristics of brown algae? |
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Definition
| - Multicellular - So tall that only the top receives enough light for photosynthesis |
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Term
| What are some characteristics of green algae? |
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Definition
- Most diverse group, live in moist environments
- Unicellular/Multicellular |
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Term
| What are some characteristics of diatoms? |
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Definition
- Unicellular
- Cell walls of cellulose and silica (glass-like) |
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Term
| What are some characteristics of dinoflagellates? |
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Definition
- Unicellular (mostly)
- Photosynthetic, some are decomposers/parasites |
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Term
| What are some characteristics of euglenoids? |
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Definition
- Unicellular
- Some are consumers and/or producers
- Have
* Chloroplasts
* Flagella (movement)
* Eyespots (sensitive to light)
* Contractile vacuoles
~ Contractile vacuoles: collects and removes water from the cell) |
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Term
| What are some characteristics of animal-like protists (protozoa)? |
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Definition
- Unicellular
- Consumers
* mostly parasitic
- Classified by how they move |
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Term
| List the four types of animal-like protists? |
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Definition
1. Amoeba-like
2. Flagellates
3. Ciliates
4. Spore-forming |
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Term
| What are characteristics of amoeba-like protozoa? |
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Definition
- soft, jelly like
- Eat and move by using pseudopodia (false feet) |
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Term
| What are characteristics of flagellates? |
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Definition
| - Flagella - Some live in water - Some are parasites * Ex. Giardia lamblia lives in digestive tracts of vertebrates - Some form beneficial relationships *flagellate live in guts of termites to help digest cellulose of wood |
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Term
| What are characteristics of Ciliates? |
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Definition
- Use cilia to move and get food
- Have two nuclei
* Macro-nucleus: controls cell function
* Micronucleus: exchanges genetic material with another ciliate |
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Term
| What are characteristics of spore-forming protozoa? |
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Definition
- all are parasite
- lack cilia & flagella
* can't move
- life cycle involves two or more hosts
- Plasmodium vivax causes malaria
* Kills 2-3 million people per year
* Hosts: mosquitoes & humans |
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