3-1 PROTISTS

“Odds and Ends”

A. Animal-like (Protozoan)

• Called this because they are heterotrophs and can move

4 Types

1. PseudopodsExamples: Ameba ( amoeba)A. Create temporary “false

foot” which allows them to move and obtain food

B. Some have contractile vacuole to expel excess H20 Video

2. CiliatesExamples: Paramecium –have

2 nuclei

A. Ciliates are used to obtain food and ‘sense’ environment

4 Types

3. ZooflagellatesA. Have flagella to moveB. May live inside other

organismsA. Parasites that feed on

body cells and fluidB. May have more than one

host

4. Sporozoans(characterized by how they live,

not how they move)

B. Fungus-like

• Heterotrophs, have cell walls, use spores to reproduce

• Not-fungus because at some point in their life, they move

3 Types

1. Water molds• Live as tiny threads in water

2. Downy mildews• Live as tiny threads in moist

places

3. Slime moldsLive in moist soil or decaying plants

C. Plant- like (algae)

• All are autotrophs• Come in many colors (pigments)

6 Types

1. Euglenoids

• Heterotrophs when there is no sun

2. Dinoflagellates• Have 2 flagella, covered in

stiff plates

6 Types

3. Diatoms• Beautiful glass– like cell

walls

4. Green algae• Fresh or salt water

6 Types

• 5. Red Algae– Live in Ocean– Red Pigments

• 6. Brown Algae– Live in ocean– Live in cool rocky waters