Protists Flashcards: Lab Eukaryotes PDF

Eukaryotes: Protists , Imee Subia, Cadence McAnelly eanna Gabrielle Alaniz, D s, , Jasmine Herodie Domingo-Leonard , Marlina Paul, Rhina Rose Cajalne ado, Hazel Joyce Cassandra Reform...

Eukaryotes: Protists , Imee Subia, Cadence McAnelly eanna Gabrielle Alaniz, D s, , Jasmine Herodie Domingo-Leonard , Marlina Paul, Rhina Rose Cajalne ado, Hazel Joyce Cassandra Reform Maligaya, Julien Venzon, Beyonce rayer Parado, Cory Mcb  Name an important dinoflagellate symbiont of corals Dinoflagellates w.m. 100x. The important dinoflagellate symbiont of corals is called zooxanthellae A dinoflagellate is the cause of the disease ciguatera. You can get this disease from eating contaminated fish What 3 species of Dinoflagellates and 1 species of Diatom are responsible for red tides that can lead to poisoning of fish, sea birds and people? Dinoflagellates: 1. Alexandrium 2. Karenia brevis 3. Gonyaulax Diatoms: 1. Pseudo-nitzschia  Diatoms: Their exoskeletons are made of glass Some species are marine, others live in freshwater Magnification: 400x Magnification: 400x Some species produce domoic acid a potent neurotoxin that can accumulate in shellfish and cause paralytic shellfish poisonings. a wide range of animals—from invertebrates to marine birds and mammals can be affected. Magnification: 400x What are Radiolarians’ beautiful exoskeletons made up of? Silica, a glass like Magnification: 400x substance Magnification: 400x  Foraminifera: Their intricate shell is made of? The form sediments that leads to rock such as the cliff of Dover. The rock was used as? - Intricate shell is made of: - Calcium carbonate - The rock was used for: - Barracks for soldiers - Chalk (on blackboards) - Construction (filler material) 40x total magnification 100x total magnification Paramecium caudatum: 1) Parasitic or free-living? 2) What group does it belong to according to its mode of locomotion? Free-living organism: does not rely on a host to survive and lives independently in its environment A species of unicellular protist in the phylum Ciliophora ○ Covered with hair-like organelles called cilia Paramecium caudatum 400x magnification  Paramecium in conjugation Is this sexual or asexual reproduction? Sexual reproduction Paramecium in conjugation 400x magnification Paramecium caudatum undergoing binary fission Is this sexual or asexual reproduction? Asexual reproduction Paramecium caudatum 400x magnification Amoeba proteus: Parasitic or free-living? What group does it belong to according to its mode of locomotion? How does it feed? Amoeba Proteus, is a free-living organism as it is able to survive in its environment without relying on a particular host. Amoeba Proteus belongs to the group of Sarcodina - as its locomotion involves using Pseudopodia - temporary foot-like Magnification: 400x extensions that help the organism move and capture food. It lacks a fixed shape, and has the ability to change form. Amoeba Proteus feeds through the process of Phagocytosis using its Pseudopodia Magnification: 40x  Giardia What group does it belong to according to its mode of lamblia locomotion? Mastigophora G. duodenalis cyst What are some of the names of the disease it causes? Giardiasis (Giardia intestinalis, Giardia duodenalis), “beaver fever”, “la tourista”, “montezuma's revenge”. Giardia lamblia 1000x oil immersion magnification Giardia lamblia How is it contracted? Contaminated food or water and feces Giardia lamblia What are some of the interesting features of this organism? Teardrop-shaped, trophozoites have 2 nuclei, can form cysts in harsh conditions. Trypanosoma brucei gambiensis: What group does it belong to according to its mode of locomotion? What disease does it cause? Belongs to the group of organisms called Mastigophora/flagellated protozoa based on its mode of locomotion, which primarily uses a flagellum for movement. It causes the disease known as African trypanosomiasis (sleeping sickness) Trypanosoma brucei gambiensis in humans; specifically, the "gambiense" 1000x oil immersion subspecies is responsible for the West African form of the disease. (continued…) How is it contracted? It is contracted from a vector, which is from the tsetse fly. This means that the parasite is transmitted to humans and animals through the bite of an infected tsetse fly which has previously fed on a host carrying the parasite. (continued…) What is the vector of infection? The vector of infection for Trypanosoma brucei is the tsetse fly. Trypanosoma Cruzi What group does it belong to according to its mode of locomotion? What disease does it cause? - Mastigophora: flagellate protozoan border parasite - Mode of locomotion: flagellar motility - It is the causative agent of Chagas disease, aka American trypanosomiasis - Transmitted by triatomine (kissing bug) Oil immersion at Magnification 1000x Trypanosoma Cruzi How is it contracted? - Chagas disease is caused by a parasite. It is passed through the droppings of the triatomine bug. Plasmodium What group does it belong to according to its mode of Falciparum locomotion? What disease does it cause? - Disease: Malaria - Plasmodium malaria parasites are obligate intracellular Infected cell protozoans that use a unique form of locomotion, termed gliding motility, to move through host tissues and Figure: Plasmodium falciparum smear at invade cells. 1000X total magnification. What are two famous drugs derived from plants to fight this disease? Two famous drugs that are used to treat Plasmodium falciparum (malaria) are Quinine and Artemisinin which are derived from medical plants and are the main anti-malarial chemotherapeutic agents. Artemisinin Quinine Plasmodium falciparum cont. Plasmodium falciparum is contracted through the bite of an infected female Anopheles mosquito, which is the vector of infection. When the mosquito bites a person, it injects Plasmodium parasites into the bloodstream through its saliva. These parasites then travel to the liver, multiply, and later infect red blood cells, causing malaria symptoms.  What group does it belong to Trichomonas vaginalis according to its mode of locomotion? What disease does it cause? Trichomonas vaginalis belongs to the group of flagellated protozoa based on its mode of locomotion. It causes the sexually transmitted infection (STI) called trichomoniasis. It primarily affects the female Figure: Trichomonas vaginalis smear genital tract, but can also infect the at 400X total magnification. male urethra.