Protists!!!

Protists Protists can be defined as single-celled organisms that contain a nucleus

Protists Protists live in: Watery environments Moist soil Live inside larger organisms

Protists Characteristics Can be autotrophic or heterotrophic Most live as individual cells Some live in large colonies

Protists 3 Major kinds of Protists Animallike Plantlike Funguslike

Protists The animallike protists are broken down into 4 major groups Sarcodines Ciliates Zooflagellates Sporozoans

Sarcodines Sarcodines can be identified by their pseudopods or “false-foot” Pseudopod is a footlike extension that an amoeba uses to move and capture food Ex. Amoeba (NNN) VIDEO!!!

Ciliates Ciliates have small hairlike projections on the outside of their cells Cilia act like tiny oars to move the organism Ex. Paramecium Stentor, Spirostomum

Zooflagellates Zooflagellates are animallike protists that move using a flagella (usually 1-8 flagella)! Many kinds live inside other organisms as symbionts a few are parasites Ex. Giardia

Sporozoans All sporozoans are parasites that feed on the cells and body fluids of their host animals Ex. Plasmodium malaria

Plantlike Protists Plantlike protists capture energy from the sun using chloroplasts

Plantlike Protists Three major groups of plantlike protists Euglenas Diatoms Dinoflagellates (WHICH IS WHICH????)

Euglena All possess two flagella, eyespots (why?!), and green structures used in photosynthesis

Diatoms Diatoms are plantlike protists made of a tough glasslike, silicon material

Dinoflagellates Dinoflagellates are plantlike protists that have two flagella and armor like cell walls

Fungus-like Protists Fungus-like protists are heterotrophic, have cell walls, and use spores to reproduce. An example are slime molds.

Adios, amoebas…