Topic: Classification Aim: Explain the characteristics of some different protists. Do Now: List the 6 kingdoms that exist. HW: Textbook assignment about the different types of protists is due tomorrow!

Review: Identify the kingdom described. 1.Multi-cellular and autotrophic 2.Unicellular, eukaryotic, autotrophic or heterotrophic 3.Multi-cellular and heterotrophic 4.Multi-cellular, absorb digested food from the environment 5.Unicellular, prokaryotic, live in extreme environments 6.Multi-cellular, heterotrophic, ingest food 7.Unicellular, prokaryotic, most are beneficial, some are harmful

Ameba/ Amoeba

Heterotrophic

Pseudopods: extensions of cytoplasm – to ENGULF food –to move around

pseudopods

Phagocytosis: process in which pseudopods ENGULF food –Vacuole and lysosome fuse together to digest food

pseudopods food vacuole

Cyclosis: used for transport & locomotion

Contractile vacuole: contracts to release extra water Contractile vacuole pseudopods food vacuole

- Live in freshwater & too much water diffuses in

NUCLEUS PSEUDOPOD CONTRACTILE VACUOLE FOOD VACUOLE CELL MEMBRANE

Paramecium

Heterotrophic –Oral groove: “mouth” –Anal pore: opening in cell membrane to expel waste

Oral groove Anal pore gullet

Vacuole

Cilia: hair-like projections covering the cell used for: –Movement –Sweeping food into the oral groove

Oral groove cilia Anal pore

Contractile vacuole

Oral groove cilia Contractile vacuole Anal pore

Oral groove cilia Contractile vacuole Anal pore food vacuole gullet food vacuole nucleus

ife/protists/

Let’s summarize… 1.What kind of nutrition is used by protists such as ameba and paramecia? 2.Explain how ameba and paramecia ingest food. 3.Once food is ingested, explain how it is digested. 4.How do ameba and paramecia maintain water balance?

Review: Ameba ingest large pieces of food by the process of (1.) Diffusion (2.) Osmosis (3.) Phagocytosis (4.) Respiration

Once food is ingested by a paramecium, the food is surrounded by a (1.) ribosome (2.) vacuole (3.) golgi body (4.) nuclear membrane

A paramecia uses ___ for movement and capturing food. (1.) pseudopods (2.) flagella (3.) teeth (4.) cilia

The process which moves cytoplasm around the protist is known as (1.) diffusion (2.) osmosis (3.) cyclosis (4.) locomotion

Some protists remove excess water with the help of (1.) lysosomes (2.) contractile vacuoles (3.) oral grooves (4.) food vacuoles

In paramecia, wastes are expelled through the (1.) oral groove (2.) anal pore (3.) lysosome (4.) contractile vacuole