Lab Exercise 10 : Protists. Station 1. Entamoeba histolytica and then trophozoites hatch out in the intestines and can be seen in fecal smears Name two.

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Presentation transcript:

Lab Exercise 10 : Protists

Station 1. Entamoeba histolytica and then trophozoites hatch out in the intestines and can be seen in fecal smears Name two ways parasitic Entamoeba histolytica is different from its pond water ‘cousin’ Amoeba proteus Cysts are ingested in contaminated water or food Answer: It has no contractile vacuoles or food vacuoles

Station 2. Trypanosoma brucei

Station 3: Giardia lamblia flagella

Station 4: Trichomonas vaginalis Vaginal smear

Station 5. Paramecium caudatum a. Method of reproduction? Asexual or sexual? Conditions? b. Method of reproduction? Asexual or sexual? Conditions? Answers: a. binary fission, asexual, good conditions b. conjugation, sexual, harsh conditions c. anterior end c. Anterior or posterior end?

Station 6. Plasmodium life cycle Gametocytes Fertilization occurs Sporogony (10-14 days) 48 hour cycles Schizogony form Macro and micro zygotes

Station 7. Physarum (slime mold) cyclosis

Station 8. Slime mold sporangia

Station 9. Dinoflagellates Name of groove? Answer: annulus

Station 10. Diatoms Habitats? Answer: round marine, elongated freshwater Cell wall composed of? Answer: silica (glass)

Station 11. Diatomaceous earth

Station 12. Filamentous Green algae Spirogyra b. Haploid (n) or diploid (2n)? a. Type of reproduction? Asexual or sexual? Conditions? Answers: a. conjugation, sexual, harsh conditions b. diploid (2n)

Station 13. Red Algae agar

blade Kelp Station 14. Brown agae algin

Wet Mount 1. Amoeba proteus

Wet Mount 2. Trichonympha from termite gut

Wet Mount 3. Paramecium caudatum

Paramecium, continued

Wet Mount 4. Euglena gracilis A

Wet Mount 5. Volvox