Protists

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Protists Fungi

• Chapter 19 20

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What kind of cells are protist made of?

• eukaryotic

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What are protozoa?

• Animal-like protist
• Unicellular
• Eats its food (heterotroph)

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How are protozoa classified?

• Method of moving (locomotion)
• How they obtain food

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What are amoebas?

• Protozoa who move with pseudopods (pseudo
  false, pod foot)

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What is a flagellate?

• A protozoan that uses flagella to move

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What is a ciliate?

• Protozoan that uses cilia to move

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What are sporozoans?

• Protozoan that has a complicated life cycle
  including a stage that resembles spores

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How are sporozoan related to malaria?

• Plasmodia is the sporozoan that causes malaria
• Malaria is a disease of the blood that causes
  fatigue, diarrhea, pain, and even death

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What is algae?

• Multicellular protists
• Classified by color
• Gave rise to modern plants

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What is a funguslike protist?

• Protist that heterotrophic but absorbs its food
• Can be multicellular or unicellular
• Believed to have given rise to fungi

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What is a fungus?

• Eukaryotic
• Unicellular or multicellular
• Chitin cell wall
• Reproduce sexually or asexually
• Digest food externally

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What kind of cell wall does a fungus have?

• chitin

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What is the mycelium?

• Threadlike mass of filaments that make the body
  of the fungus
• Usually located in the ground/food source

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How do fungi get food?

• Release digestive enzymes into environment or
  onto food
• Absorbs nutrients through cell wall

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How do mushrooms reproduce?

• Meiosis makes spores
• Spores germinate and grow a new mycelium
• 2 mycelia fuse
• Reproduce by growing a mushroom that makes spores

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How do fungi reproduce asexually?

• Budding
• fragmentation

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What do fungi do in the environment?

• Decomposers break down waste/dead organisms

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What are lichens?

• Symbiotic relationship between algae and fungi
• Pioneer species (primary succesion) that breaks
  down rocks and makes soil

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What are mycorrhizae?

• Fungi that live in/among plant roots
• Help increase surface area and absorb
  minerals/nutrients in exchange for food
  (mutualism)