Presentation is loading. Please wait.

Presentation is loading. Please wait.

Unicellular plants and animals

Similar presentations


Presentation on theme: "Unicellular plants and animals"— Presentation transcript:

1 Unicellular plants and animals
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
8

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 doesn’t 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 400,000 starved

25 7. Protist Groups Cannot move themselves
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


Download ppt "Unicellular plants and animals"

Similar presentations


Ads by Google