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Chapter 19: Protists Chapter 20: Fungi

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Chapter 19: Protists Chapter 20: Fungi Chapter 19 Objectives Identify the characteristics of Kingdom Protista. Compare and contrast the different groups of protists. – PowerPoint PPT presentation

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Title: Chapter 19: Protists Chapter 20: Fungi


1
Chapter 19 ProtistsChapter 20 Fungi
2
  • Chapter 19
  • Objectives
  • Identify the characteristics of Kingdom Protista.
  • Compare and contrast the different groups of
    protists.

3
  • Characteristics
  • Eukaryotes
  • Live in moist environments
  • Unicellular or multicellular
  • Autotrophs, heterotrophs, or both
  • Some move - others cannot
  • 3 categories of protists
  • Animal-like
  • Fungus-like
  • Plant-like

4
  • Animal-like Protists
  • called Protozoans
  • unicellular heterotrophs
  • four groups based on movement
  • Pseudopods
  • Flagellates
  • Ciliates
  • Others

5
  • Psuedopods
  • false feet
  • used for movement (cytoplasmic streaming) and
    feeding
  • thin cell membrane
  • contractile vacuoleexpels excess water
  • reproduce by mitosis
  • Example Amoeba

6
  • Flagellates
  • called Zooflagellates
  • move by a flagellum
  • these usually live inside other organisms
  • Examples termites
  • African sleeping Sickness

7
  • Ciliates
  • cilia
  • help organisms move, get food and sense
    environment
  • multicellular with 2 nuclei
  • macronucleus controls everyday functions
  • micronucleus is for reproduction.
  • reproduce by mitosis or
  • conjugation
  • Example Paramecium

8
CONTRACTILE VACUOLE
CILIA
FOOD VACUOLE
MACRONUCLEUS
MICRONUCLEUS
ORAL GROOVE
ANAL PORE
9
  • Other Protozoans
  • called sporozoans - parasites
  • feed on cells body fluids of hosts

Sporozoans like Plasmodium (causes malaria) have
more than 1 host mosquitoes and then humans
10
  • Fungus-like Protists
  • heterotrophs
  • cell walls
  • reproduce by spores (tiny cells that can grow
    into a new organism)
  • move at one point during their lives
  • Examples Water or Slime molds

11
  • Plant-like Protists
  • algae
  • autotrophs
  • unicellular
  • contain different pigments so they come in
    different colors
  • Euglena special type of algae
  • when there is no sunlight they become
    heterotrophic

12
  • Chapter 20Fungi
  • Objectives
  • Describe the basic characteristics of the fungi
    kingdom
  • Explain the role of fungi as decomposers

13
  • Characteristics
  • eukaryotes
  • use spores to reproduce
  • heterotrophs
  • need warm, moist places to grow
  • have hyphae
  • thread-like structures used to obtain food
  • Examples yeast, molds, mildew, and mushrooms

14
  • Reproduction
  • produce spores with a protective covering
    carried by water and air (asexual)
  • can reproduce sexually
  • yeasts are unicellular and go through budding

15
  • Fungi Groups
  • Threadlike - produce spores in their threadlike
    hyphae (ex. Bread mold)
  • Saclike - produce spores in structures that look
    like sacs (ex. Yeast)

16
  • Clubproduce spores in structures that look like
    clubs (ex. Mushrooms)
  • Imperfectcannot go through sexual reproduction
    (ex. Penicillin)
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