Kingdom Protista - PowerPoint PPT Presentation

About This Presentation
Title:

Kingdom Protista

Description:

Kingdom Protista Unicellular plants and animals General Information Protista, from the Greek protistos = first Diverse group Aka Algae & Protozoa Most are Unicellular ... – PowerPoint PPT presentation

Number of Views:2156
Avg rating:3.0/5.0
Slides: 27
Provided by: alexlemays
Category:

less

Transcript and Presenter's Notes

Title: Kingdom Protista


1
Kingdom Protista
  • Unicellular plants and animals

2
General Information
  • Protista, from the Greek protistos first
  • Diverse group
  • Aka Algae Protozoa
  • Most are Unicellular
  • exception Volvox is colonial

3
Characteristics
  • A. Eukaryotic
  • (have a nucleus)

4
Characteristics
  • B. Many feeding patterns
  • some plant-like, (autotrophs)
  • some animal-like, (heterotrophs)
  • some fungus-like(absorb food from the dead)
  • some parasite-like (pathogens, eat the living)

5
Characteristics
  • C. Big or tiny
  • D. Unicellular or colonial
  • E.Have weird features, like photosensitive areas
    (eyespots)

6
3. Habitats
  • Almost anywhere there is water

7
4. Reproduction
  • Asexual
  • Sexual
  • Both, alternating

8
Ciliophora - Conjugation
9
Reproduction
  • Alternation of Generations
  • ? switch btwn. asexual repro. (spores)
  • sexual repro. (gametes) back again

10
5. Specialized Cells
  • Cells specialized for f(x)s
  • Division of labor
  • E.g. holdfast cell, gamete-forming cells

Holdfast cell
11
6. Classification by Exclusion
  • ? If organism doesnt belong in any other phylum,
    put it in this one!
  • I.e. Weirdos go in this group!

12
7. Protist Groups
  • Pseudopodia for locomotion
  • false feet
  • Animal-like, parasites
  • AMOEBAS
  • E.g. ?Amoeba
  • E.g. Entamoeba histolytica
  • (amoebic dysentary)

13
7. Protist Groups
  • b. Foraminifera
  • Source of CaCO3
  • (calcium carbonate / chalk)
  • E.g. The
  • white cliffs
  • of Dover

14
7. Protist Groups
  • c. Diatoms
  • Photosynthetic, unicellular, double shells
  • of SiO3(glass)

15
7. Protist Groups
  • d. Green Algae
  • plant-like protists
  • E.g. ?Volvox

16
7. Protist Groups
  • e. Red Algae

Source of agar (growth medium for bacteria)
17
8. Protist Groups
  • f. Brown Algae
  • E.g.
  • kelp

18
7. Protist Groups
  • g. Dinoflagellates
  • Protists with Flagella (animal-like)
  • Capable of bioluminescence
  • (glowing in the dark)
  • the red tide
  • makes scallops
  • toxic to humans

19
Red (Crimson) Tide
20
7. Protist Groups
?Causes giardia / backpackers disease
?Trichonympha in termites digest wood
(cellulose)
21
8. Protist Groups
  • h. Euglenoids e.g. ?Euglena
  • ?use flagella to move

22
7. Protist Groups
  • i. Cilia for locomotion -Ciliates)
  • ?Paramecium

23
7. Protist Groups
  • j. Slime Molds
  • Multicellular
  • Single cellular

24
7. Protist Groups
  • k. Water Molds
  • E.g. potato blight
  • Caused potato famine
  • in Ireland
  • 1845-1847
  • 400,000 starved

25
7. Protist Groups
  • l. ?Sporozoans
  • Cannot move themselves
  • Move via vectors (things that carry them)

26
l. ?Sporozoans
  • EXAMPLES
  • E.g. Plasmodium (causes malaria)
  • vector Anopheles mosquito
  • E.g. Toxoplasmolysis (from cat feces
  • causes fetal death)
  • E.g. African sleeping sickness
  • vector tsetse fly
Write a Comment
User Comments (0)
About PowerShow.com