Most protists are single celled microscopic organisms that usually live in water

Groups of Protists:• Most portists can be placed in three categories:

1.

2.

3.

Animal-like

Plant-like

Fungus-like

Animal-like Protists:• Animal-like protists are or organisms called

single celledcolonial protozoans

• They can live in both fresh and salt , in the , and in the of other organisms.

water soil bodies

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Groups of Protists:• All protozoans get their from the just like .

• Some absorb through their cell membranes, others larger of food.

animalsenvironmentfood

nutrientsengulf particles

Animal-like Protist Characteristics

Giardia

Plasmodium

Flagellates

Amoebas

ParameciumCilia, oblong shaped, found in fresh water, eat bacteria, have 2 nuclei. Single celled organism.

Pseudopods, don’t have a definite shape, move in a flowing motion, they surround their food to digest it.

Flagellum, live inside other organisms. Example Termites

Doesn’t move causes Maleria

Flagella, causes Giardia

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1. True or False

Protists have no nucleus, only hereditary material

multi-cellular

single celled plants

food algae• Plant-like protists, commonly called , make

their own through photosynthesis like

. Some are while other are

organisms.

Plant-like Protists:

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Plant-like Protist Characteristics

Euglena

Brown Algae

Red Algae

Diatoms

1-2 flagella, found in fresh water, contains chlorophyll green uses an eye spot to find light. Most similar to plants

Commonly known as kelp or seaweed, can grow up to 200 ft long, we use it in ice cream

Wrapped sushi, cosmetics and paint

Have a hard shell & made of silica, toothpaste, produce oxygen food sources for whales

2. Which category of protists includes Paramecium, Amoebas, Flagellates, Plasmodium, Giardia

A. Fungus-like Protists

B. Animal-like Protists

C. Plant-like Protists

3. Which category of protists includes Euglena, Brown Algae, Red Algae, Diatoms

A. Fungus-like Protists

B. Animal-like Protists

C. Plant-like Protists

Fungus-like Protists:

• Fungus-like protists are similar to . They have

producing bodies and act as .

fungi

spore decomposers

Fungus-like Protist Characteristics

Slime Mold Pseudopod, eat bacteria, live in forests on leaves & rotting trees

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Protists are Helpful and Harmful:

• Protists are both and .helpful harmful

Helpful:

Harmful:

•Primary food source for most ocean animals•Used in foods such as ice cream and sushi•Used in paint, cosmetics, toothpaste, etc •Makes oxygen• Decomposers

• Diseases such as Malaria and Giardi

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1845-1922

Organism:

What He Accomplished:

The protozoan that causes Malaria (plasmodium)

• He discovered cause of Malaria and other diseases

• Won Nobel Prize in 1907

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1857-1932

Organism:

What He Accomplished:

• Malaria-life cycles of plasmodium.

• Proved that malaria was passed from infected birds by mosquitoes to animals including humans.

• Won Nobel Prize in 1902 for medicine

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