eukaryotes unicellular or multicellular very varied group
Download
Skip this Video
Download Presentation
Eukaryotes Unicellular or multicellular Very varied group

Loading in 2 Seconds...

play fullscreen
1 / 27

Eukaryotes Unicellular or multicellular Very varied group - PowerPoint PPT Presentation


  • 221 Views
  • Uploaded on

Kingdom Protista. Eukaryotes Unicellular or multicellular Very varied group. Origin and Diversity. Probably formed by cells taking in prokaryotic cells and keeping them as organelles Ex – mitochondria andchloroplasts were probably monerans that were captured .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Eukaryotes Unicellular or multicellular Very varied group' - albert


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
eukaryotes unicellular or multicellular very varied group
Kingdom Protista

Eukaryotes

Unicellular or multicellular

Very varied group

origin and diversity
Origin and Diversity
  • Probably formed by cells taking in prokaryotic cells and keeping them as organelles
    • Ex – mitochondria andchloroplasts were probably monerans that were captured
colonies formed before multicellular protists
Colonies formed before multicellular Protists
  • Once cells were growing together, they eventually developed specialized functions.
    • These eventually became attached and relied on each other for those functions. (Kind of like people who live in groups – they become specialized and begin to rely on each other.
protists are conveniently divided into three groups
Protists are conveniently divided into three groups
  • Animal-Like Protists
    • heterotrophs
  • Plant-Like Protists
    • autotrophs
  • Fungus-Like Protists
    • Decomposers (heterotrophs that eat dead organic matter)
animal like protists
Animal-like protists
  • Often called protozoans
  • Unicellular and don’t have specialized tissues, organs or organ systems.
animal like protists sarcodines
Animal-like protists - Sarcodines
  • Amoebas – move using pseudopods
animal like protists ciliophorans
Animal-like protists - ciliophorans

These are cilia

  • Move using cilia
  • These are

paramecia

This is its oral groove

animal like protists sporozoans always parasites and no way to move on their own
Animal-like protists – sporozoans –always parasites and no way to move on their own
  • Plasmodium is a parasite that you get from a mosquito bite. The disease it causes is malaria, which kills about 3 million people a year around the world. It lives in your red blood cells and

destroys them.

plant like protists algae
Plant-Like protists - algae
  • Autotrophic – by photosynthesis
  • Commonly called algae or seaweed
  • Unicellular or multicellular
unicellular algae
Unicellular algae
  • Food for other organisms
  • Dinoflagellates cause red tides and some other harmful algae blooms in the oceans.
diatoms in fresh and salt water
Diatoms – in fresh and salt water

Bottom of food

chain

Case made of silica

(glass-like)

Used for abrasives

and filters

multicellular algae
Multicellular algae

Volvox – colony of

Flagellated single cells

  • almost multicellular
green algae
Green algae

Predominant pigment is chlorophyll

Found in all types of water

red algae
Red algae
  • Grow in warm salt water
  • Some grow very deep in the ocean or on ice
brown algae
Brown algae
  • Mostly saltwater
  • Grow in cool salt water
  • Includes largest Protists
fungus like protists
Fungus-like protists
  • Slime molds – creep along in an amoeba-like fashion
protists in the biosphere
Protists in the Biosphere
  • Some cause disease
    • Red tide
    • African sleeping sickness
    • Giardia
    • Potato blight
    • Malaria
good uses of protists
Good uses of protists

Plankton – bottom of

the food chain

Food – carageenan, agar, algin –

thickeners and flavor enhancers

Seaweed as food

Diatoms for filters and as

abrasives

Indicators of the general health of the

environment

ad