Topic Classification Aim Explain the characteristics of some

  • Slides: 39
Download presentation
Topic: Classification Aim: Explain the characteristics of some different protists. Do Now: List the

Topic: Classification Aim: Explain the characteristics of some different protists. Do Now: List the 6 kingdoms that exist. http: //www. brainpop. com/science/diversityoflife/sixkingdoms/ 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

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

Ameba/ Amoeba

 • Heterotrophic

• Heterotrophic

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

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

pseudopods

pseudopods

 • Phagocytosis: process in which pseudopods ENGULF food – Vacuole and lysosome fuse

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

food vacuole pseudopods

food vacuole pseudopods

 • Cyclosis: used for transport & locomotion

• Cyclosis: used for transport & locomotion

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

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

- Live in freshwater & too much water diffuses in

- Live in freshwater & too much water diffuses in

FOOD VACUOLE NUCLEUS PSEUDOPOD CONTRACTILE VACUOLE CELL MEMBRANE

FOOD VACUOLE NUCLEUS PSEUDOPOD CONTRACTILE VACUOLE CELL MEMBRANE

Paramecium

Paramecium

 • Heterotrophic – Oral groove: “mouth” – Anal pore: opening in cell membrane

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

gullet Oral groove Anal pore

gullet Oral groove Anal pore

Vacuole

Vacuole

 • Cilia: hair-like projections covering the cell used for: – Movement – Sweeping

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

cilia Oral groove Anal pore

cilia Oral groove Anal pore

 • Contractile vacuole

• Contractile vacuole

cilia Oral groove Anal pore Contractile vacuole

cilia Oral groove Anal pore Contractile vacuole

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

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

http: //www. brainpop. com/science/diversityofl ife/protists/

http: //www. brainpop. com/science/diversityofl ife/protists/

Let’s summarize… 1. What kind of nutrition is used by protists such as ameba

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

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.

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. )

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

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. )

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

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