Download - Protist ppt
![Page 1: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/1.jpg)
Kingdom: ProtistaProtists are unicellular organisms that have a nucleus.
![Page 2: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/2.jpg)
Similar to BacteriaSimilar to Bacteria Unicellular One of the first groups of living things on
Earth. (1.5 billion years ago.) Microscopic Can cause disease. Can be parasites
![Page 3: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/3.jpg)
Difference from Difference from BacteriaBacteria
Has a nucleus. Live in watery environment. Generally live as individual cells. Protists vary greatly in appearance and
function.
![Page 4: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/4.jpg)
3 Categories3 Categories I. Animal-like Protists. II. Plant-like Protists. III. Fungus-like Protists.
![Page 5: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/5.jpg)
I. Animal-like ProtistsI. Animal-like Protists Protozoan means “First Animal”. Cells contain a nucleus. Cells lack a cell wall. They are heterotrophs. Most can move on their own.
![Page 6: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/6.jpg)
4 Groups of Animal-4 Groups of Animal-like Protistslike Protists
1. Sarcodines (SAHR-koh-dighnz) 2. Ciliates (SIHL-ee-ihts) 3. Flagellates (FLAJ- ehl-ihts) 4. Sporozoans (spohr-oh-ZOH-uhnz)
![Page 7: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/7.jpg)
1. Sarcodines1. Sarcodines Have pseudopods (Greek:“false foot”) Extensions of the cell membrane and
cytoplasm. Pseudopods are used for movement and to
capture food. Many have shells. These shells form limestone, marble and
chalk.
![Page 8: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/8.jpg)
One type: One type: Most familiar
Sarcodine. Pseudopods: Blob shaped. Contractile
Vacuoles: controls amount of water inside
Food Vacuole: where food is digested.
![Page 9: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/9.jpg)
Split PersonalitySplit Personality Amebas reproduce
by dividing into two new cells (binary fission).
Amebas can respond to their environment.
They are sensitive to light and some chemicals.
![Page 10: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/10.jpg)
2. Ciliates2. Ciliates Have cilia on the
outside of their cells.
Tiny hair-like projections used for movement, to gather food and as feelers.
![Page 11: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/11.jpg)
Type: ParameciumType: Paramecium Pellicle: tough
outer wall. Slipper shaped Oral groove: like the
mouth Gullet: holds food. Food Vacuole:
digests food. Anal Pore: removes
wastes 2 Contractile
Vacuoles 2 Nuclei Reproduces by
either binary fission or conjugation.
![Page 12: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/12.jpg)
3. Flagellates 3. Flagellates (Zooflagellates)(Zooflagellates)
Have a Flagellum: a long whip-like structure used for movement.
Many live in animals Symbiosis a close
relationship, at least one benefits.
Mutualism: when both partners benefit.
![Page 13: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/13.jpg)
4. Sporozoans4. Sporozoans All Sporozans are parasites. They feed on cells and body fluids. Form from Spores (tiny reproductive cells). Pass from one host to another. Pass from ticks, mosquitoes or other
animals to humans.
![Page 14: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/14.jpg)
II. Plant-like ProtistsII. Plant-like Protists(Algae)(Algae)
Unicellular and Multicellular Colonies (groups of unicellular protists) Can move on their own Autotrophs: make their own food from simple materials
using light energy (photosynthesis). 70% of the Earth’s oxygen is produced by Plant-like
Protists! Pigments: chemicals that produce color
![Page 15: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/15.jpg)
6 Groups of Plant like 6 Groups of Plant like ProtistsProtists
Euglenoids (yoo-GLEE-noydz) Diatoms (DIGH-ah-tahmz) Dinoflagellates (digh-noh-FLAJ-eh-layts) Red Algae Green Algae Brown Algae
![Page 16: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/16.jpg)
1. Euglenoids1. Euglenoids Green Unicellular Live in fresh water Autotrophs, but can be
heterotrophs under certain conditions.
Flagella Eyespot: sensitive to
light. Chloroplasts Pellicle
![Page 17: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/17.jpg)
2. Diatoms2. Diatoms Unicellular 10,000 living
species. Aquatic Glass like cell wall Diatomaceous earth:
course powder that comes from dead diatoms (toothpaste, car polish & reflective paint.
![Page 18: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/18.jpg)
3. Dinoflagellates3. Dinoflagellates Unicellular Cell walls are like
plates of armor. Two flagella Spins when it moves. Colorful (pigments) Can glow in the dark. Causes Red Tide
![Page 19: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/19.jpg)
Red AlgaeRed Algae Multicellular seaweeds Live in deep ocean waters Used for ice cream and
hair conditioner Used as food in Asia
![Page 20: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/20.jpg)
Green AlgaeGreen Algae Most are unicellular Some form colonies Few are multicellular Can live in fresh and salt
water and on land in damp places.
Very closely related to green plants.
![Page 21: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/21.jpg)
Brown AlgaeBrown Algae Commonly called seaweed Can contain brown, green,
yellow, orange and black pigments.
Attach to rocks Have air bladders Giant Kelp can be 100
meters long! Used as food thickeners
![Page 22: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/22.jpg)
III. Fungus-like III. Fungus-like ProtistsProtists
Heterotrophs Have cell walls. Many have flagella and are able to move at some point
in their lives. Three types: Slime Molds, Water & Downy Molds Reproduce with Spores (tiny cell that is able to grow into
a new organism)
![Page 23: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/23.jpg)
Water & Downy MoldsWater & Downy Molds Live in water or moist
places. Tiny threads that look like
fuzz. Attack food crops Caused the Irish Potato
Famine.
![Page 24: Protist ppt](https://reader036.vdocument.in/reader036/viewer/2022062311/58eec0221a28ab196c8b467b/html5/thumbnails/24.jpg)
Type: Type: Reproduce by
Fruiting Bodies: The Fruiting Bodies
contain Spores. At first they look like
ameba, then later they look like mold.
Live on moist shady places.
Feed on bacteria and other microorganisms.