Do Now: Do you think there will be anything

different in your ponds?

Do Now: Do you think there will be anything

different in your ponds?

January 6,2009Page 33

Hmk- Get Cell Quiz SIGNED

January 6,2009Page 33

Hmk- Get Cell Quiz SIGNED

ProtistsProtists• Are considered eukaryotes -

organisms that have cells with nuclei.• Can be unicellular or multicellular.• Some are autotrophs (make own food)

or heterotrophs (consume other organisms)

• 3 categories - animal-like protists, funguslike protists and plantlike protists.

• Are considered eukaryotes - organisms that have cells with nuclei.• Can be unicellular or multicellular.• Some are autotrophs (make own food)

or heterotrophs (consume other organisms)

• 3 categories - animal-like protists, funguslike protists and plantlike protists.

Animal-like ProtistsAnimal-like Protists

• Pseudopods - temporary bulge of the cell membrane that fills with cytoplasm• Help protozoa to move in response

to change in environment.• Help to trap food.

• Pseudopods - temporary bulge of the cell membrane that fills with cytoplasm• Help protozoa to move in response

to change in environment.• Help to trap food.

• Contractile vacuole - collects extra water and expels it from the cell.

• Cilia - hairlike projections from cells that move with a wavelike pattern.• Used to move, obtain food, and

sense the environment.

• Contractile vacuole - collects extra water and expels it from the cell.

• Cilia - hairlike projections from cells that move with a wavelike pattern.• Used to move, obtain food, and

sense the environment.

• Flagella - whiplike structure that helps the protist move.

• Flagella - whiplike structure that helps the protist move.

Plantlike ProtistsPlantlike Protists

• Commonly called algae.• Algae is an autotroph.

• Commonly called algae.• Algae is an autotroph.