video introduction kingdom protista – the protists watch the following video on discovery...
TRANSCRIPT
Protists
Video IntroductionKingdom Protista – The ProtistsWatch the following video on Discovery
Education: http://player.discoveryeducation.com/index.cfm?guidAssetId=3D84751E-23C5-4538-9090-2725EE7B64D6
Set up Cornell Notes – p. ? Topic - Protists Definition
Protists:(pro-tist)
Eukaryote:(you-care-ee-oats)
Euglena:____________________________________________________________________________________________________(Draw and Label)
Amoeba: ___________________________________________________________________________________________________________________(Draw and Label)
Paramecium: ________________________________________________________________________________________________(Draw and Label)
Volvox: ____________________________________________________________________________________________________________________(Draw and Label)
All Protists are EukaryotesEukaryotes are organisms that have cells with a
distinct membrane-bound nucleus and organelles.
Most unicellular protists are microscopic, however, some multicellular protists grow more than 60 meters in a year.
Today we will be discussing unicellular protists.
Definitions: Protist: (pro-tist) Unicellular, multicellular or organisms in a colony with diverse nutritional and reproductive means.Eukaryotes: (you-care-ee-oats) Organisms that have cells with distinct membrane around nucleus and organelles.
Euglena Euglena (you-glee-nuh) is a unicellular protist with characteristics
of both plants and animals. It moves freely and feeds on other organisms, like an animal. Has the ability to make its own food, like a plant.
Contains chloroplasts which are organelles that store chlorophyll and is a site to perform photosynthesis. Chloroplasts: (clor-oh-plasts) cell organelles in the Euglena Chlorophyll: (clor-oh-fil) green pigment that captures energy
for photosynthesis from the sun. Photosynthesis: (fo-toe-sin-tha-sis) process which organisms
use light energy to join carbon dioxide and water to make nutrients.
Euglena: a unicellular protist with a reddish eyespot and a single flagellum, found in stagnant waters.
Euglena DiagramNucleu
s
Chloroplasts (with chlorophyll)
Flagellum
Eyespot
Contractile vacuole
AmoebaAn Amoeba (uh-mee-buh) is a unicellular
protistAnimal-like because they feed on other
organisms and are able to move freely.Feeds and moves by using structures
called pseudopods. (false feet)Surrounds another protist and takes it into
its cytoplasm and digests it. Amoeba: a unicellular protist which is able to change shape
because of the movements of pseudopods. They live in fresh water or soil or as parasites in man and animals.
Amoeba
ParameciumParamecium (pair-uh-mee-see-um) is unicellular protist found in
ponds and slow moving streams. This cell is covered with cilia, which are tiny hairs and are used for
movement.Feeds through its oral groove as it moves through water. Eats
bacteria, algae, and other small organisms.Could be described as animal-like because of how it feeds and
moves.Excess water is pumped out of the cell by the contractile vacuole to
prevent the cell from bursting.Has 2 nuclei; one needed for cell processes, the other is used only
for sexual reproduction.
Paramecium: a unicellular protist covered in cilia. The cilia is used for mobility and the Paramecium feeds through its specialized cell structure, its oral groove.
Paramecium
Oral Groove
Micronucleus
Macronucleus
Contractile vacuole
VolvoxVolvox (vol-vox) is also a unicellular protist. Has chloroplasts to carry out photosynthesis
for its food source.Volvox is unique because it lives in a group
of cells called a colony.Each cell close to the surface propels the
colony through water with their two small flagella.
Volvox: a unicellular protist which lives in a colony and moves through the water with flagella. (freshwater algae)
Volvox
Protists Groups and FeaturesDraw Table below on Page ?
Protist Structure Locomotion
(Movement)
Food source
(Energy)
Specialized Cell
Structure
Euglena
Amoeba
Paramecium
Volvex
Protists Groups and FeaturesProtist Structure Locomotion
(Movement)Food source
(Energy)Specialized
Cell Structure
EuglenaUnicellular Flagellum Feeds on other
organisms; can make nutrients
Eyespot
AmoebaUnicellular Pseudopods Feeds on other
organisms
ParameciumUnicellular Cilia Feeds on other
organismsOral groove and contractile vacuole
Volvex Unicellular
(lives in colonies)
Flagella Makes nutrients
Quick Check Quiz 1. Which protist is covered with cilia? a. Euglena b. Amoeba c. Paramecium d. Volvox 2. Which protist moves by forming pseudopods? a. Euglena b. Amoeba c. Paramecium d.
Volvox3. Which two protists share a feature with plant cells? a. Amoeba and Paramecium b. Euglena and Volvoxc. Amoeba and Euglena d. Paramecium and Volvex4. Which protists have a unicellualar structure? a. Euglena b. Paramecium c. Amoebad. All the above