Unravel the World of Unicellular Eukaryotic Parasites
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Questions and Answers

Which of the following protists use pseudopodia for locomotion?

  • Diatoms
  • Ciliates
  • Amoebas (correct)
  • Radiolarians

What is the primary mode of locomotion for Paramecium?

  • Cilia (correct)
  • Apical complex
  • Pseudopodia
  • Flagella

Which supergroup includes amoebas and slime molds?

  • Amoebozoa (correct)
  • Eumycetozoa
  • Rhizaria
  • Chromalveolata

What is the characteristic feature of apicomplexans?

<p>Apical complex (D)</p> Signup and view all the answers

Which protist is responsible for causing malaria?

<p>Plasmodium vivax (B)</p> Signup and view all the answers

What is the primary mode of reproduction for ciliates?

<p>Conjugation (C)</p> Signup and view all the answers

Which protist is the only parasitic ciliate that affects humans?

<p>Balantidium coli (C)</p> Signup and view all the answers

What is the function of contractile vacuoles in ciliates?

<p>Excrete excess water (C)</p> Signup and view all the answers

Which supergroup includes diatoms and dinoflagellates?

<p>Chromalveolata (A)</p> Signup and view all the answers

What is the primary mode of locomotion for radiolarians?

<p>Pseudopodia (A)</p> Signup and view all the answers

Which of the following is a characteristic of protozoa?

<p>They are chemoheterotrophic (D)</p> Signup and view all the answers

What is the dormant stage of a protozoan called?

<p>Cyst (A)</p> Signup and view all the answers

How does asexual reproduction occur in protozoa?

<p>By binary fission (C)</p> Signup and view all the answers

What are the products of schizogony called?

<p>Merozoites (B)</p> Signup and view all the answers

How does sexual reproduction increase genetic diversity in protozoa?

<p>By syngamy (D)</p> Signup and view all the answers

What organelle do some protozoa have for osmotic regulation?

<p>Contractile vacuoles (C)</p> Signup and view all the answers

What may mitochondria be altered to in parasitic protozoa?

<p>Kinetoplasts (A)</p> Signup and view all the answers

What are the whip-like structures found in many protists called?

<p>Flagella (A)</p> Signup and view all the answers

Which of the following is NOT a characteristic of protozoa?

<p>Multicellular (C)</p> Signup and view all the answers

What is the actively feeding growing stage of a protozoan called?

<p>Trophozoite (B)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lacks mitochondria but has flagella?

<p>Fornicata (A)</p> Signup and view all the answers

Which protist causes severe diarrhea when ingested and is spread through cysts from feces that contaminate water supplies?

<p>Giardia lamblia (A)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lives in the guts of animals like termites and cockroaches and has a large, complex cell structure with an undulating membrane and often many flagella?

<p>Parabasalia (D)</p> Signup and view all the answers

Which protist is an STD that causes vaginal discomfort and discharge in women, and can be transmitted by men?

<p>Trichomonas vaginalis (C)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup includes photosynthetic organisms that feed and are motile?

<p>Euglenozoa (C)</p> Signup and view all the answers

Which protist causes African sleeping sickness and is transmitted by the tsetse fly?

<p>Trypanosoma brucei gambiense (D)</p> Signup and view all the answers

Which protist causes South American sleeping sickness (Chagas) and is transmitted by the reduviid bug?

<p>Trypanosoma cruzi (A)</p> Signup and view all the answers

Which protist causes disfiguring skin disease and is vectored by the sandfly Phlebotomus?

<p>Leishmania (B)</p> Signup and view all the answers

Which class of antiprotozoal drugs inhibits folic acid synthesis, like in bacteria?

<p>Sulfonamides (B)</p> Signup and view all the answers

Which class of antiprotozoal drugs interferes with DNA synthesis?

<p>Nitroimidazoles (B)</p> Signup and view all the answers

Which of the following is a characteristic of protozoa?

<p>They have a wide variety of habitats (A)</p> Signup and view all the answers

What is the dormant stage of a protozoan called?

<p>Cyst (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of protozoa?

<p>They are multicellular organisms (B)</p> Signup and view all the answers

Which protist causes African sleeping sickness and is transmitted by the tsetse fly?

<p>Trypanosoma (B)</p> Signup and view all the answers

What may mitochondria be altered to in parasitic protozoa?

<p>Kinetoplasts (C)</p> Signup and view all the answers

Which protist is responsible for causing malaria?

<p>Plasmodium (D)</p> Signup and view all the answers

What is the primary mode of locomotion for Paramecium?

<p>Cilia (A)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lacks mitochondria but has flagella?

<p>Euglenozoa (D)</p> Signup and view all the answers

Which of the following protists use pseudopodia for locomotion?

<p>Amoeba (B)</p> Signup and view all the answers

Which protist causes severe diarrhea when ingested and is spread through cysts from feces that contaminate water supplies?

<p>Giardia (A)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup includes photosynthetic organisms that feed and are motile?

<p>Euglenozoa (C)</p> Signup and view all the answers

What is the primary mode of locomotion for Paramecium?

<p>Cilia (C)</p> Signup and view all the answers

Which protist is responsible for causing malaria?

<p>Plasmodium (D)</p> Signup and view all the answers

Which class of antiprotozoal drugs interferes with DNA synthesis?

<p>Nitroimidazoles (A)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lives in the guts of animals like termites and cockroaches and has a large, complex cell structure with an undulating membrane and often many flagella?

<p>Parabasalia (B)</p> Signup and view all the answers

Which protist causes severe diarrhea when ingested and is spread through cysts from feces that contaminate water supplies?

<p>Giardia lamblia (C)</p> Signup and view all the answers

Which protist causes African sleeping sickness and is transmitted by the tsetse fly?

<p>Trypanosoma brucei gambiense (C)</p> Signup and view all the answers

Which protist is an STD that causes vaginal discomfort and discharge in women, and can be transmitted by men?

<p>Trichomonas vaginalis (C)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lacks mitochondria but has flagella?

<p>Fornicata (A)</p> Signup and view all the answers

Which supergroup includes amoebas and slime molds?

<p>Amoebozoa (C)</p> Signup and view all the answers

What is the characteristic feature of apicomplexans?

<p>Apical complex (A)</p> Signup and view all the answers

What is the primary mode of reproduction for ciliates?

<p>Conjugation (A)</p> Signup and view all the answers

What is the primary mode of locomotion for Paramecium?

<p>Cilia (C)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lives in the guts of animals like termites and cockroaches and has a large, complex cell structure with an undulating membrane and often many flagella?

<p>Parabasalids (C)</p> Signup and view all the answers

What is the characteristic feature of apicomplexans?

<p>Apical complex (B)</p> Signup and view all the answers

Which supergroup includes diatoms and dinoflagellates?

<p>Chromalveolata (A)</p> Signup and view all the answers

How does asexual reproduction occur in protozoa?

<p>Binary fission (B)</p> Signup and view all the answers

Which subgroup of the Excavata supergroup lives in the guts of animals like termites and cockroaches and has a large, complex cell structure with an undulating membrane and often many flagella?

<p>Parabasalids (D)</p> Signup and view all the answers

Which of the following is NOT a characteristic of protozoa?

<p>Cell wall (B)</p> Signup and view all the answers

Which protist causes severe diarrhea when ingested and is spread through cysts from feces that contaminate water supplies?

<p>Entamoeba histolytica (C)</p> Signup and view all the answers

Which of the following is a characteristic of fungi?

<p>They have cell walls made of cellulose (B)</p> Signup and view all the answers

What is the primary mode of reproduction for molds?

<p>Formation of spores (A)</p> Signup and view all the answers

Which of the following is a sensitivity of fungi to antibiotics?

<p>Sensitive to penicillin (A)</p> Signup and view all the answers

Which of the following is a characteristic of eubacteria?

<p>They have sterols in their cell membranes (A)</p> Signup and view all the answers

What are the two forms in which fungi can grow?

<p>Mold and yeast (B)</p> Signup and view all the answers

What is the primary mode of locomotion for radiolarians?

<p>Pseudopodia (C)</p> Signup and view all the answers

Which type of hyphae contains cross walls called septa?

<p>Septate hyphae (A)</p> Signup and view all the answers

What is the primary mode of reproduction in fungi?

<p>Asexual reproduction (A)</p> Signup and view all the answers

Which type of fungi can take either yeast or hyphae form depending on the conditions?

<p>Dimorphic fungi (D)</p> Signup and view all the answers

What is the typical fungal growth temperature for most fungi?

<p>23°C (A)</p> Signup and view all the answers

What is the primary mode of locomotion for yeast?

<p>Yeast do not have locomotion (A)</p> Signup and view all the answers

What is the function of mycorrhizae?

<p>Contribute essential minerals and water to promote plant growth (A)</p> Signup and view all the answers

Which antifungal medication primarily treats Candida albicans infections?

<p>Nystatin (B)</p> Signup and view all the answers

Which antifungal medication inhibits ergosterol biosynthesis in the fungal membrane?

<p>Imidazoles (A)</p> Signup and view all the answers

Which antifungal medication is active against systemic fungal infections of Candida and Cryptococcus?

<p>Flucytosine (A)</p> Signup and view all the answers

Which antifungal medication interferes with mitosis by binding to microtubules?

<p>Griseofulvin (A)</p> Signup and view all the answers

Which antifungal medication inhibits biosynthesis of the fungal cell wall?

<p>Echinocandins (B)</p> Signup and view all the answers

Which antifungal medication is known for causing leakage of the cell's contents by binding to ergosterol?

<p>Polyenes (C)</p> Signup and view all the answers

Which group of fungi is the oldest known and ecologically important?

<p>Chytridiomycota (D)</p> Signup and view all the answers

Which group of fungi is predominantly aquatic and thought to be derived from a protozoan ancestor?

<p>Chytridiomycota (D)</p> Signup and view all the answers

Which group of fungi includes molds with nonseptate hyphae and is important for food science and as crop pathogens?

<p>Zygomycota (A)</p> Signup and view all the answers

Which group of fungi accounts for 75% of all fungi and includes fungi used as food, common causes of food spoilage, and human pathogens?

<p>Ascomycota (D)</p> Signup and view all the answers

Which group of fungi includes molds with septate hyphae and both asexual and sexual reproduction?

<p>Ascomycota (A)</p> Signup and view all the answers

Which group of fungi forms symbioses with plants, leaves and stems, and is a fungal partner in lichen?

<p>Ascomycota (D)</p> Signup and view all the answers

Which fungus is responsible for causing the disease known as thrush?

<p>Candida albicans (D)</p> Signup and view all the answers

Which fungal disease affects the lower respiratory tract and is often referred to as 'summer flu'?

<p>Histoplasmosis (A)</p> Signup and view all the answers

Which fungal disease is commonly known as 'athlete's foot'?

<p>Dermatophytosis (C)</p> Signup and view all the answers

Which fungus is responsible for causing the disease known as ringworm?

<p>Trichophyton rubrum (D)</p> Signup and view all the answers

Which fungal disease is commonly known as 'jock itch'?

<p>Dermatophytosis (B)</p> Signup and view all the answers

Which fungus is responsible for causing the disease known as candidiasis?

<p>Candida albicans (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of fungi?

<p>They are unicellular (D)</p> Signup and view all the answers

What is the primary mode of reproduction for fungi?

<p>Fragmentation (D)</p> Signup and view all the answers

Which of the following is a characteristic of fungi?

<p>They produce spores (D)</p> Signup and view all the answers

What is the primary mode of locomotion for fungi?

<p>They are non-motile (B)</p> Signup and view all the answers

Which of the following is NOT a characteristic of eubacteria?

<p>They can undergo photosynthesis (C)</p> Signup and view all the answers

Which group of fungi includes molds with septate hyphae and both asexual and sexual reproduction?

<p>Ascomycetes (C)</p> Signup and view all the answers

Which type of hyphae contains cross walls called septa?

<p>Septate hyphae (B)</p> Signup and view all the answers

What is the primary mode of reproduction in fungi?

<p>Both sexual and asexual reproduction (C)</p> Signup and view all the answers

Which type of fungi can take different forms depending on the conditions?

<p>Histoplasma capsulatum (C)</p> Signup and view all the answers

What is the most common way fungi obtain nutrients?

<p>Absorption (C)</p> Signup and view all the answers

Which group of fungi forms symbiotic relationships with plants and promotes plant growth?

<p>Mycorrhizae (D)</p> Signup and view all the answers

Which class of antiprotozoal drugs interferes with DNA synthesis?

<p>Antimalarials (A)</p> Signup and view all the answers

Which fungal infection primarily affects the gall bladder and can cause diarrhea and respiratory illness?

<p>Microsporidiosis (A)</p> Signup and view all the answers

Which antifungal medication is effective against systemic fungal infections caused by Aspergillus, Cryptococcus, and Candida?

<p>Amphotericin B (A)</p> Signup and view all the answers

Which antifungal medication inhibits ergosterol biosynthesis in the fungal membrane?

<p>Clotrimazole (A)</p> Signup and view all the answers

Which antifungal medication is used to treat Candida skin infections?

<p>Miconazole (B)</p> Signup and view all the answers

Which antifungal medication is used to treat athlete's foot?

<p>Miconazole (D)</p> Signup and view all the answers

Which antifungal medication is used to treat fungal infections in immunocompromised patients, such as those with HIV?

<p>Ketoconazole (D)</p> Signup and view all the answers

Which group of fungi is the oldest known and ecologically important?

<p>Chytridiomycota (C)</p> Signup and view all the answers

Which group of fungi is terrestrial, saprophytic, and important for food science and crop pathogens?

<p>Zygomycota (C)</p> Signup and view all the answers

Which group of fungi accounts for 75% of all fungi and includes fungi used as food, common causes of food spoilage, and human pathogens?

<p>Ascomycota (B)</p> Signup and view all the answers

Which group of fungi contains obligate symbionts that exist in the roots of more than 80% of the world's land plants?

<p>Glomeromycota (D)</p> Signup and view all the answers

Which group of fungi is predominantly aquatic and thought to be derived from a protozoan ancestor?

<p>Chytridiomycota (A)</p> Signup and view all the answers

Which group of fungi includes molds with septate hyphae and both asexual and sexual reproduction?

<p>Ascomycota (D)</p> Signup and view all the answers

Which fungal disease affects the lower respiratory tract and is often referred to as 'summer flu'?

<p>Histoplasmosis (A)</p> Signup and view all the answers

Which fungal disease affects the skin and is commonly known as ringworm?

<p>Dermatophysis (D)</p> Signup and view all the answers

Which fungal disease is caused by Candida albicans and is commonly known as 'yeast infection'?

<p>Candidiasis (C)</p> Signup and view all the answers

Which fungal disease causes inflammation of the mouth and throat, and is characterized by a creamy coating on the tongue?

<p>Thrush (D)</p> Signup and view all the answers

Which subgroup of fungi produces visible fruiting bodies, such as mushrooms?

<p>Basidiomycota (C)</p> Signup and view all the answers

Which subgroup of fungi lacks mitochondria but has flagella?

<p>Microsporidia (C)</p> Signup and view all the answers

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