Lab Exercise 10 Protists Station 1 Entamoeba histolytica

Lab Exercise 10: Protists

Station 1. Entamoeba histolytica Cysts are ingested in contaminated water or food 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 Answer: It has no contractile vacuoles or food vacuoles

Station 2. Trypanosoma brucei

Station 3: Giardia lamblia flagella

Station 4: Trichomonas vaginalis Vaginal smear

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

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

Station 7. Physarum (slime mold) cyclosis

Station 8. Slime mold sporangia

Station 9. Dinoflagellates Name of groove? Answer: annulus

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

Station 11. Diatomaceous earth

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

Station 13. Red Algae agar

Station 14. Brown agae blade Kelp 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