1. Protists
Section 18-1 and 23-1

2. To do list…. the structure of the processes of life: an amoeba.
a paramecium.
the processes of life:
(food-getting, waste removal, response, reproduction, respiration)

3. Amoeba / Ameba

4. Amoeba Structures A ectoplasm CA cell membrane BA Food Pseudopodium
HA vacuole w/crystal
KA cytoplasmic streaming
JA endoplasm
IA contractile vacuole
FA nucleus
EA food vacuole with diatom
GA pseudopodium
Pseudopodium
Contractile vacuole
ectoplasm
endoplasm
food vacuole w/diatom
Nucleus
Cytoplasmic streaming

5. Amoeba / Ameba

6. The paramecium What are the structures of a paramecium?
How does this structure allow a paramecium to carry out the processes of life?

7. Paramecia

8. Structures - Paramecium
cilium
trichocyst
anal pore
contractile vacuole
(vacuole canal)
micronucleus
oral groove
gullet
pellicle N A FP L M H F J B
Can you label these structures?

9. Structure Slipper-shaped Cilia anterior/posterior ends
macronucleus and micronucleus

10. Food-getting Bacteria, small protozoa, algae
oral groove
mouth pore
gullet
food vacuole
cytoplasmic streaming
anal pore
Check out: A17, A19, B6 B36,B37,B38,

11. Endocytosis = Phagocytosis
Food-getting
Pseudopodium s
Food vacuole s

12. Symbiotic relationship
Paramecium
Green algae (Chlorella)

13. Waste Removal (water, ammonia)
Hypotonic environment
Water enters passively
A contractile vacuole uses cellular energy to pump water out
Carbon dioxide is a waste product!
How does this leave the cell?
By diffusion directly through the cell membrane.
Oxygen enters the same way.
Check out A24

14. Response Avoidance reaction Trichocysts Positive for food
negative for heat, low oxygen levels, cold, toxic chemicals

15. Reproduction
Binary fission
conjugation

16. Replication Binary Fission

17. Fission in Paramecium

18. Respiration
Diffusion

19. Homework: Look up these words and copy the sentence in the textbook that includes the word. Find these in either 18-1 or 23-1

20. Because differences among are so extreme, most scientists agree that they (protists) should be divided into many different kingdoms. (p.417)
Over time a remarkable relationship called symbiosis occurred. This symbiosis relationship is called mutualism. (p. 416)

21. This mass moves around for a while, then forms a fruiting body that releases spores that develop into new ameoba-like cell on their own, with out needing to join with another cell
In alternation of generations diploid and haploid cells switch back and forth.

22. Review Xerox - Protists Section 23-1
2 k
3 b
4 n
5 h
6 d
7 a
8 g
9 m
10 l
11 c
12 b
13 i
14 o
15 d
16 f
17 j

23. Page 2 18 Eukaryotic 19 True 20 Ameba 21 True 22 True (EC)
23 Spores (EC)
24 True
25 True
26 Lack chlorophyll
27 a single cell

24. Paramecium A. Macronucleus B. Micronucleus C. Gullet (oral groove)
D. Anal pore
E. Pellicle
F. Cilia
G. Contractile vacuole
28. Animal like because it moves.

25. References