Kingdom Protista

Objective 1: I can describe protists

Protists are a kingdom of living organisms that CAN NOT be classified as animals plants or fungus. They are: Eukaryotic – they contain a nucleus

Can be unicellular (composed of only one cell) or multicellular (composed of many cells)

Can be plant-like, animal-like, or fungus-like

Live in wet or moist environments

If you look at a drop of pond water under a microscope, all the "little creatures" you see swimming around are protists.

Plant-like protists:

Contain chloroplasts

are autotrophs –they make their own food.

Examples: Algae: eukaryotic plant like protists that can be

unicellular or multicellular, contain chlorophylland provide over HALF of the worlds oxygen supply and is the base of the food chain(Red Algae, Brown Algae, Green Algae)

Diatoms: unicellular group of algae that come in a variety of shapes and sizes and contain silica in their cell walls.

Objective 2: I can describe plant-like protists

Objective 3: I can describe animal-like protists

Animal-like protists: Protozoans

Heterotrophs – can not make their own food

digest their food in vacuoles

Protozoans are grouped according to how they move

The word protozoa means "little animal." They are so named because many species behave like tiny animals—specifically, they hunt and gather other microbes as food.

3 groups of Animal-Like Protists:

Amoebae(plural for amoeba)Amoeba – a unicellular life form

characterized by an irregular shape and moves using pseudopods.

a foot-like extension used for locomotion

They engulf food as they go through a process called phagocytosis

the cellular process of engulfing solid particles by reshaping the cell membrane.

Flagellates

move by a tail-like structure called a flagella

attached to the outer membrane

used for locomotion

generally the smallest of the protozoa

have one or several long flagella

Ciliates: move by tiny hair-like structures called cilia eat the other two types of protozoa and bacteria

found in every aquatic habitat. Examples:

Paramecium: a group of unicellular protozoa which mainly move by the use of cillia

Are heterotrophs (can NOT produce their own food)

Many have flagella and are able to move at some point in their lives

Examples:

water molds, slime molds, downy molds

Sporozoa –reproduces by the use of spores

Objective 4: I can describe fungus-like protists

Protists

Animal- Like (Protozoans)

Heterotrophs

Ciliates

MOVE BY CILLIA

Flagellates

MOVE BY FLAGELLA Amoebae

MOVE BY PSEUDOPODS

Plant Like (Algae)

Autotrophs

ALGAE:

RED

GREEN

BROWN

CONTAINCHLOROPHYLL

Fungus-Like (decomposers)

Heterotrophs

MOLDS:

WATER DOWNY

SLIME

SPOROZOA

&

FLAGELLA

Euglenas: are both plant-like and animal-like

are autotrophs

contain chlorophyll and can make food from sunlight

Are Heterotrophs

ingest food from surrounding water.

Have a red eye spot which is used to detect light.

Objective 5: I can describe special Protists:

Volvox: • Unicellular type of green algae

• forms spherical colonies of up to 50,000 flagellated cells that live in a variety of freshwater habitats.

• A bunch of unicellular algae form a hollow ball colony together…a volvox is not multicellular!

Objective 6: I can describe the organelles found in Protists

Amoeba

Paramecium

Euglena

Hollow Ball of individualized cells - colony

casddddddd

Daughter Colony

Each algae cell has 2 flagellum

Individual algae cell

casddddddd

Volvox

Organelles (Tiny Organ): parts of a cell

Cytoplasm: the gel like substance that fills the inside of the cell to allow other organelles to move around

Cytoplasmic Streaming: the movement of cytoplasm inside of the cell which aids in movement

Contractile Vacuole: a structure that removes excess water from the cell

Flagella: long whip like tail used for locomotion (movement)

Pellicle: a thin wall that supports the cell membrane of some protists like euglena and paramecium

Organelles (Tiny Organ): parts of a cell

Cillia: short hairs that move in rhythm and are used for locomotion (movement)

Pseudopods: false feet used for locomotion (movement) of ameobae

Nucleus: the brain of the cell – where DNA is stored – it controls all processes of the cell

Chloroplasts: the site where photosynthesis occurs – turns sunlight into sugar or food for the cell

Organelles (Tiny Organ): parts of a cell

Oral Groove: canal of the paramecium used to ingest nutrients.

Food Vacuole: area where digestion occurs

Red Eye Spot: helps the euglena to detect light

Protists

Animal- Like (__________)

_____________________

____________

MOVE BY CILLIA

____________

MOVE BY FLAGELLA ______________

MOVE BY PSEUDOPODS

Plant Like (___________)

_______________

ALGAE:

RED

GREEN

BROWN

CONTAIN___________

Fungus-Like (____________)

___________________

MOLDS:

WATER DOWNY

SLIME

SPOROZOA

&

FLAGELLA