Section 19.1 Summary

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1. The large plant-like organism in the picture is a
   giant kelp, a type of protist called a brown
   algae. What role does the kelp play in this
   ecosystem?
2. How might the loss of this kelp affect the
   ecosystem?

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TODAYS OBJECTIVE
Be able to identify characteristics of the
Kingdom Protista and Kingdom Fungi
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Today we are going to look in more detail at two
Kingdoms Protista and Fungi
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REVIEW
Protista
Microscopic Eukaryotic cells Most are
single-celled Some are multi-cellular Live in
moist areas
Why is Kingdom Protista referred to as the junk
drawer?
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Protista
REVIEW
What are the three types of protista?
Fungus-like SLIME MOLDS AND MILDEW
Plant-like ALGAE
Animal-like PROTOZOA
HETEROTROPHS MOVEMENT
STRUCTURE DECOMPOSER
AUTOTROPHIC PIGMENTS
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Section 19.1 Summary pages 503-509
Fungus-like Protists
Slime mold
Mildew
Water mold
Like fungus, they are decomposers and have a very
similar body structure. Unlike fungus, these
protista can move at some point in their life AND
their cell walls are not made of chitin (a carb).
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Section 19.1 Summary pages 503-509
Plant-like Protists
Red Algae
Diatoms
Green Algae
Like plants, they have photosynthetic pigments
and are autotrophs. Unlike plants, the plant-like
protists do not have organs such as roots, stems
and leaves.

• Unicellular algae produce much of the oxygen in
  Earths atmosphere and are the basis of aquatic
  food chains.

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Animal-like Protists
We are going to concentrate on the animal-like
protozoa today, and also try to find and identify
some under the microscope.
Like animals, protozoans can move around and they
consume food for energy (heterotrophs). Unlike
animals, protozoans are unicellular.
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Animal-like Protists
Four Types of Protozoa
AMOEBAS
1.

• Amoebas have no cell wall and form pseudopodia to
  move and feed.

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Animal-like Protists
2.
FLAGELLATES

• Use a flagella to whip around
• Usually live inside of another organism
• Some cause disease like African sleeping
  sickness.
• High Fever, Headaches
• Eventually moves into the CNS
• Bouts of slumber and insomnia
• Fatal if not treated early

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Animal-like Protists
CILIATES
3.

• Have little hair-like projections called cilia
  that help it move, get food, and sense the
  environment.

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Animal-like Protists
SPOROZOANS
4.

• A spore is a reproductive cell that forms without
  fertilization and produces a new organism.

• Reproduce by making spores
• Internal parasites that cause disease, such as
  malaria
• Symptoms are fever, anemia, convulsionsand in
  severe cases- coma and death

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• Feed on cells body fluids of hosts

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REVIEW
FUNGI
Microscopic/Macroscopic Eukaryotic cells Most are
multi-celled Some are uni-cellular Heterotrophs Li
ve in moist, warm areas
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Section 20.1 Summary pages 529-534
FUNGI

• Fungi used to be classified in the plant kingdom
  because, like plants, many fungi grow anchored in
  soil and have cell walls.

• The basic structural units of multicellular fungi
  are their threadlike filaments called hyphae,
  which develop from fungal spores.

Some hyphae anchor the fungus, some invade the
food source, and others form fungal reproductive
structures.
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Section 20.1 Summary pages 529-534
The structure of fungi
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Section 20.1 Summary pages 529-534
Spores
Bread Mold
Hyphae
Mycelium
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Section 1 Check
Question 1
Hyphae develop from _______.
A. spores
B. chitin
C. cellulose
D. rhizoids
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Section 1 Check
The answer is A, spores.
Spores
Bread Mold
Sporangium
Hyphae
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Section 1 Check
Question 1
What characteristic do all protists share?
Answer
They are all eukaryotes. Most of their metabolic
processes occur inside their membrane-bound
organelles.
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Section 1 Check
Question 2
What common function do pseudopodia, cilia, and
flagella share in protozoans?
Answer
These are all structures that protozoans use to
move.
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Chapter Assessment
Question 4
What is the main difference between animal-like
protists and animals?
Answer
All protozoans are unicellular.