Simple Eukaryotes (protists And Fungi) Flashcards
List 4 different types of Eukaryotes
Protists: Protozoa
Fungi: Mold, yeast
Animals: vertebrae’s
Plants: Not pathogenic
How many nuclei to protist cells have?
Some like Giardia have two or more
How do protist cells move?
With Flagella/cilia
Are protist sexual or asexual?
Both, some require hosts
What is the difference between a cyst, ocysts and a oocysts?
They are dormant, encapsulated forms, similar to endospores.
Cysts have 1 layer, ocysts have two layers and oocysts have 3 layers
What is phylum Metamonada?
They are anaerobic, lack mitochondria, most are symbionts of animals.
ie) Giardia
What do diplomonads have?
Multiple flagella and 2 separate nuclei. Eg) Giardia
What is Giardia lamblia:
It’s anaerobic, symbiotic, 2 nuclei, no mitochondria, multiple flagella,
It’s an example Diplomonads
What are unique Parablasalids:
They have Flagella and undulating membrane that is used for motility.
Give an example of Parablasalids
Trichomonas Vaginalis,
It’s sexually transmitted and infects the vagina and urethra.
What belongs in Phylum Euglenozoa?
Non-parasitic photosynthetic forms, typically have flagella ie) Euglena
What is a kinetoplastids?
These organisms have a single lg mitochondria. The kinetoplast stain darkly
What is an example of Trypanosomes:
Trypanosoma brucei: causes African sleeping sickness
Trypanosoma Cruzi: causes Chagas’ disease
How does Trypanosma brucei cause infection?
T.brucei is transmitted by tsetse fly. The Tsetse fly normally only feeds off of wild life. Humans are incidental hosts.
What disease does Trypanosoma cruzi casue?
It can cause Chagas’ disease. (Found in the America’s)
Transmitted by Triomine (kissing bug) the triatomine bug will bit while sleeping. If get fecus and scratch it into the bite can enter the blood. Also transferred via blood transfusion.
What belongs in the Phylum alveolata?
Dinoflagellates and Apicomplexa
What is Dinoflagellates?
Photosynthetic phytoplankton. Can produce toxins->paralytic shellfish poisoning (Shellfish eats to many and humans eat it and get the toxin)
What is unique about apicomplexa?
Apicomplexa= apical complex. Used to penetrate into a cell (Sporozoites)
Exclusively parasite of animals. They have intricate life cycles with both sexual and asexual phases.