warm-up / eoc prep 1. which of the cells characterized in the chart below is a prokaryotic cell? a....

Warm-Up / EOC Prep1. Which of the cells characterized in the chart below is a

prokaryotic cell? A. Cell A B. Cell B C. Cell C D. Cell D

2. Which does NOT belong to the domain Eukarya? A. Animalia  B. Protista C. Plantae  D. Eubacteria

Agenda

• Warm-up

• Notes- Protists

• Specializing on a Protist

• Amoeba & Paramecium Models

• Cool-down

PROTISTSGuided Notes

Where did protists come from?

ENDOSYMBIOSIS

HYPOTHESIS

ENDOSYMBIOSIS

HYPOTHESIS1st eukaryotes were formed by the symbiosis of several

prokaryotes

ENDOSYMBIOSIS HYPOTHESIS

Proposed by Lynn Margulis

PROTISTSunicellular (single celled)

or multicellular eukaryotic organisms

PROTISTS • Evolved about 2 billion years

after monera• Characteristics in common with

plantae, animalia, and fungi• Protista was created to have a

place for all the “unclassified”

• Basically any eukaryotes that are not plants, animals, or fungi are protists.

• Protists are the most diverse of all organisms, most of them are unicellular microscopic organisms and others are complex and multicellular such as kelp.

• Protists were the first eukaryotes on earth-they evolved nearly 1.5 billion years ago. Some reproduce asexually and some reproduce sexually.

• Some are multicellular and some are unicellular. Some are autotrophic-which means they make their own food- and some are heterotrophic-which means they must get their food from other organisms.

3 TYPES OF PROTISTS

• There are 3 major groups of protists:

• 1. Animal-like protists

• 2. Plant-like protists

• 3.Fungi-like protists

Animal-like Protists

1. Animal-like protists include:

• Ciliates-use cillia for movement.

• Cilia are hair like projections that work like oars in the water Example = paramecium

ParameciumParamecium

Zoomastigina • Zooflagellates-Move through the water using

flagella

• Flagella are long, whiplike projections (like the tail of a sperm)

Zoomastiginia

• Sarcodines-Use pseudopods (false foot) for movement

• Pseudopods are temporary projections of cytoplasm that help in movement and feeding

• Ex: Amoeba –move using pseudopodia-flexible, cytoplasmic extensions, capture food by engulfing it, heterotrophic

AMOEBA

• Sporozoans-do not move on their own and are parasitic

• Some animal like protists can cause human diseases such as African sleeping sickness, dysentery, and malaria

Plasmodium falciparum

Plant-like Protists

• 1. Algae-photosynthetic, distinguished by the type of pigment (green, red, brown), found in both fresh and salt water

• 2. Kelp-multicellular seaweed

• 3. Euglena-can be heterotrophic (animal-like) or autotrophic (plant-like), move by flagella

• 4. Diatoms

• 5. Dinoflagellates

EUGLENA

DIATOMDIATOM

Dinoflagellates

Fungus-like Protists

2 Phyla of Funguslike Protists

• 1. Slime mold-heterotrophic funguslike protists that play key roles in recycling organic matter.

• 2. Water mold-feed on dead or decaying matter and some are plant parasites

MYXOMYCOTA

Specializing on a Protist!• You must work by yourself! • Choose a protist from the following list: (CH. 21)

Algae Diatoms Sporozoans

Dinoflagellates Euglenoids Amoeba

Ciliates (paramecium) Slime mold

Make a small poster on your protist which includes… (CH 21 has all the info!)

1.General description 3. Picture

2.How they get food 4. How they move

Cool-Down

1. Give two reasons why Protista is the most diverse of all the kingdoms.

2. Name two different types of locomotion (movement) of protists.

A man left home and turned left three times before running into a man in a mask. Who is the man in the mask? What is the

man who left home doing?

The man in the mask is the catcher. The man who left home is playing baseball and

was trying to get a home run.

Warm-Up / EOC Prep1. Mitochondria are important to eukaryotic cells because

A. They break down damaged cell parts

B. They make energy in the form of ATP

C. They make glucose through photosynthesis

D. They make proteins

2. Which of the following cells contains DNA as the genetic material in a nucleus?

a. Prokaryotic cell b. Bacteria cell

c. Animal cell d. All of the above

Agenda

• Warm-up

• Stations

• Planet Earth- Jungles

• Cool-down