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Protists Section 18-1 and 23-1
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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)
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Amoeba / Ameba
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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
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Amoeba / Ameba
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The paramecium What are the structures of a paramecium?
How does this structure allow a paramecium to carry out the processes of life?
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Paramecia
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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?
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Structure Slipper-shaped Cilia anterior/posterior ends
macronucleus and micronucleus
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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,
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Endocytosis = Phagocytosis
Food-getting Pseudopodium s Food vacuole s
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Symbiotic relationship
Paramecium Green algae (Chlorella)
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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
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Response Avoidance reaction Trichocysts Positive for food
negative for heat, low oxygen levels, cold, toxic chemicals
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Reproduction Binary fission conjugation
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Replication Binary Fission
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Fission in Paramecium
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Respiration Diffusion
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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
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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)
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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.
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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
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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
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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.
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References
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