Protists Protists n Protists can be defined as

Protists!!!

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

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

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

Protists n 3 Major kinds of Protists ¡ ¡ ¡ Animallike Plantlike Funguslike

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

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

Plantlike Protists n Plantlike protists capture energy from the sun using chloroplasts

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

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

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

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

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

Adios, amoebas…