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?

TODAY’S OBJECTIVE:

Be able to identify characteristics of the Kingdom Protista and Kingdom Fungi

Today we are going to look in more detail at two Kingdoms: Protista and Fungi

Microscopic

Eukaryotic cells

Most are single-celled

Some are multi-cellular

Live in moist areas

Protista

REVIEW:

Why is Kingdom Protista referred to as the “junk

drawer”?

ProtistaWhat are the three types of protista?

Fungus-like

SLIME MOLDS AND MILDEW

Plant-like

ALGAE

Animal-like

PROTOZOA

HETEROTROPHS

MOVEMENTAUTOTROPHIC

PIGMENTS

STRUCTURE

DECOMPOSER

REVIEW:

Fungus-like Protists

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).

Mildew

Slime mold

Water mold

Plant-like Protists

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.

DiatomsGreen Algae

Red Algae

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

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.

Animal-like Protists

AMOEBAS

Four Types of ProtozoaAnimal-like Protists

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

1.

FLAGELLATES

Animal-like Protists2.

• 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

CILIATES

Animal-like Protists

• Have little hair-like projections called cilia that help it move,

get food, and sense the environment.

3.

SPOROZOANS

Animal-like Protists

• Reproduce by making spores

• Internal parasites that cause disease, such as malaria

• Symptoms are fever, anemia, convulsions…and in severe cases- coma and death

4.• A spore is a

reproductive cell that forms without

fertilization and produces a new

organism.

Feed on cells & body fluids of hosts

Microscopic/Macroscopic

Eukaryotic cells

Most are multi-celled

Some are uni-cellular

Heterotrophs

Live in moist, warm areas

FUNGIREVIEW:

• Fungi used to be classified in the plant kingdom because, like plants, many fungi grow anchored in soil

and have cell walls.

FUNGI

• 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.

Section 20.1 Summary – pages 529-534

The structure of fungiThe structure of fungi

Bread Mold

Hyphae

Spores

Mycelium

Question 1Hyphae develop from _______.

D. rhizoids

C. cellulose

B. chitin

A. spores

The answer is A, spores.

Bread Mold

Hyphae

Sporangium

Spores

Question 1What characteristic do all protists share?

AnswerThey are all eukaryotes. Most of their metabolic processes occur inside their membrane-bound organelles.

Question 2What common function do pseudopodia, cilia, and flagella share in protozoans?

AnswerThese are all structures that protozoans use to move.

What is the main difference between animal-like protists and animals?

AnswerAll protozoans are unicellular.

Question 4