1. Ch 20-PROTISTA

2. Defined more by differences than similarities
The Kingdom Protista
Defined more by differences than similarities
Not actual plants ,animals or fungi
Many _________________________- and all eukaryotes
So diverse that many biologists suggest they should be composed of several kingdoms
UNICELLULAR

3. Classification based on :
1)________________________________-heterotrophs,autotrophs,decomposers and parasites
2)Some classified by how they move
nutrition

4. II. Animallike protists:___________________________________
protozoans
4 Phylla: distinquished by modes of movement
___________________use whiplike flagella;many are aquatic;many absorb food through cell membranes;many reproduce asexually and some sexually by meiosis
Sarcodines use _________________for movement and feeding:example-amoebas-move by extensions of psuedopods:have food vacuoles;_______________secrete calcium carbonate shells
Zooflagellates
Foraminiferans
pseudopods

7. _____________do not move;many parasites,reproduce by ________
cilia
Paramecium
Ciliophora move by hairlike __________________;best known are of genus ____________-has micronucleus and macronucleus,gullet or oral groove,anal groove,contractile vacuole to balance water content,reproduce asexually and sexually by conjugation
_____________do not move;many parasites,reproduce by ________
spores
sporozoans

9. Diseases from protists
****-_____________________-caused by Plasmodium and Anopheles mosquito,many forms resistant to drugs
malaria

10. ***Other Protistan diseases_Trypanosoma
Carried by ______fly
tsetse

11. ****Amebic dysentery

12. Giardia

13. NONPARASITIC__Trichonympha-mutualism
Digests wood for termite!!!!

14. III.Plantlike Protists
-Unicellular algae
Contain chlorophyll and undergo photosynthesis
***_____________________-plantlike,have 2 flagella and no cell wall
Euglenophytes

16. _________________________________-yellow-green algae and golden brown algae
_______________________-thin ,delicate CELL WALLS OF SLICA-GLASSLIKE
DINOFLAGELLATES-half are photosynthetic and half are heterotrophic,some luminescent
diatoms
Crysophyta

17. PHYTOPLANKTON-near surface of ocean and food source
Algal blooms that are massive depletion of nutrients and many cells die-an indicator of pollution

18. IV .Plantlike protists-red,brown and green algae
Red algae-__________________-uses chloroplyll a and accessory pigments and can live at great depths;most multicellular and play role in coral reef
Brown algae________________________-have chlorophyll a and c and an accessory pigment:largest and most complex of algae-kelp can grow 60 m in length
Phaeophyta
Rhodophyta

20. Green algae-_______________________-have chlorophyll a and b;unicellular,colonial,and multicellular
Chlorophyta

21. HUMAN USES OF ALGAE- -animal and human food source
-used in medications
-ice cream
-used in making plastics,waxes,deodorants,paints,transitors ,lubricants,agar,toothpaste

22. V.Funguslike protists
Have centrioles and LACK chitin cell walls of regular fungus kingdom
Heterotrophs as decomposers
SLIME MOLDS-on forest floor-spore forming
WATER MOLDS-hyphae and spores-connected to great “Potato Famine”

23. Slime molds

24. Water mold