Protists

1
Protists
2
The Protists

• Protists are unicellular eukaryotic cells.
  (Unlike bacteria which are unicellular
  prokaryotic cells.)
• Do you remember the differences between
  prokaryotes and eukaryotes???
• Protists are like the junk drawer of microbiology
  there is a huge amount of diversity within this
  kingdom but they are all single-celled
  eukaryotes.
• Protists can be generally classed into one of
  three groups
• Animal-like
• Fungus-like
• Plant-like

3
Animal-like Protists

• Animal-like protists are those that must ingest
  (eat) things from the environment around them.
• There are four groups of animal-like protists
• Zooflagellates
• Amoebas
• Ciliates
• Sporozoans

4
Zooflagellates

• The zooflagellates are animal like protists that
  are easily recognized by their flagella a long
  whip-like structure used to propel it through the
  water.
• Zoo animal
• Many zoo-flagellates can cause sickness if
  ingested in contaminated water.
• Trypanosoma gambiensis
• Giardia lamblia

5
Amoebas

• Amoebas are known for their ever-changing body
  shape.
• They use pseudopods to move and reach out to grab
  food.
• The food is engulfed using phagocytosis.

6
Ciliates

• The ciliates are covered in cilia. The back
  ground to this slideshow is a ciliated protist.
• They have a rigid outer layer called the pellicle
  that maintains a stable shape (unlike the
  amoebas).
• Paramecium

7
Sporozoans

• Sporozoans are called such because they use
  spores as part of their reproductive cycle.
• They are non-motile and parasitic. They need to
  be passed on from host to host and they live
  using the hosts resources.
• Plasmodium vivax

8
MalariaThe Ugly Truth!
9
Fungus-like Protists

• These protists are heterotrophic and most are
  decomposers that feed on dead and decaying plants
  and animals. (Hence the title fungus-like.)
• In this subsection of protists, you will find the
  acellular slime moulds, cellular slime moulds and
  the water moulds!
• Lets move on

10
Plant-like Protists

• Plant-like protists contain chlorophyll and carry
  out photosynthesis. They are autotrophs.
• You will find the euglenoids, and algae in this
  group.
• These two groups differ from each other in a few
  ways
• Euglenoids have the ability to be heterotrophic
  or photosynthetic while most algae are only
  photosynthetic.
• Euglenoids have flagella, some algae do but not
  all.
• Euglenoids a free living while some algae live in
  large colonies.

11
Euglena vs. Algae!!!

• Euglena!
• Diatoms!
• Dinoflagellates!
• Red Tide!
• Algae!
• Algal Bloom!
• Stupid guy drinking algae!

12
Thats All I Got