Protists
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Questions and Answers

What is the primary characteristic that distinguishes eukaryotic micro-organisms from prokaryotic micro-organisms?

  • The ability to photosynthesize
  • The presence of cell walls
  • The ability to form symbiotic relationships
  • The presence of membrane-bound organelles (correct)

What is the primary difference between yeast and multicellular fungi?

  • The number of cells (correct)
  • The number of cell walls
  • The type of energy production
  • The presence of chlorophyll

Which of the following is an example of a protozoan?

  • Seaweed
  • Amoeba (correct)
  • Bacterium
  • Mushroom

What is the term for eukaryotic micro-organisms that are mostly unicellular?

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

Which of the following is NOT a characteristic of protists?

<p>They have cell walls (C)</p> Signup and view all the answers

What is the term for the domain that includes protists and fungi?

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

Which type of protist is characterized by the presence of chlorophyll and a cell wall?

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

What is the mode of nutrition in protists that contain chloroplasts and perform photosynthesis?

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

Which of the following supergroups of Eukarya includes the kingdoms of Animals, Plants, and Fungi?

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

What is the mode of reproduction in most protists?

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

Which of the following protist groups is characterized by the presence of cilia or flagella for motility?

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

What is the characteristic of some protist species that allows them to form multicellular colonies?

<p>Capacity to form multicellular colonies (A)</p> Signup and view all the answers

What is the characteristic feature of the apex of Apicomplexans?

<p>Specialized for penetrating host cells and tissues (B)</p> Signup and view all the answers

Which of the following is NOT a route of transmission for Toxoplasma gondii?

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

What is the result of Natural selection on the thalassaemia allele carriers in areas with high prevalence of malaria?

<p>Selective survival of the thalassaemia allele carriers (B)</p> Signup and view all the answers

What is the life cycle of Apicomplexans dependent on?

<p>Two or more different host species (C)</p> Signup and view all the answers

What is the result of Plasmodium malariae infection in Red Blood Cells?

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

What is the approximate number of deaths per year caused by malaria?

<p>900,000 (C)</p> Signup and view all the answers

What is responsible for the red color of red algae?

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

Which group of organisms includes slime molds and gymnamoebas?

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

What is the common name of the green alga Ulva?

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

Which group of organisms includes land plants and green algae?

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

What is the name of the protist group that includes the species Bonnemaisonia hamifera?

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

What is the primary function of cilia in ciliates?

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

Which of the following characteristics is common to both dinoflagellates and diatoms?

<p>Presence of flagella (A)</p> Signup and view all the answers

Which group of protists includes water molds and their relatives?

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

What is the primary function of pseudopodia in Rhizaria?

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

Which of the following protists is characterized by the presence of smooth or hairy flagella?

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

Which of the following protists is an example of a parasitic oomycete?

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

What is a characteristic of protozoa?

<p>Not having a cell wall or chlorophyll (B)</p> Signup and view all the answers

What is a common feature of eukaryotic micro-organisms?

<p>Having a true nucleus (A)</p> Signup and view all the answers

What type of fungi is characterized by being unicellular?

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

What is a characteristic of protists that are pathogenic?

<p>Being eukaryotic parasites (B)</p> Signup and view all the answers

What is a category of protists that includes seaweeds?

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

What is the kingdom that includes protists and fungi?

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

What is a characteristic of multicellular fungi?

<p>Having a cell wall and being multicellular (D)</p> Signup and view all the answers

What is the term for eukaryotic micro-organisms that are mostly multicellular?

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

What is a characteristic of diplomonad parasites?

<p>They have modified mitochondria (D)</p> Signup and view all the answers

Which of the following parasites is transmitted through food and causes gastroenteritis?

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

What is a characteristic of euglenozoans?

<p>They have a spiral or crystalline rod inside their flagella (A)</p> Signup and view all the answers

Which of the following is an example of a parabasalid parasite?

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

What is the primary function of flagella in protozoa?

<p>To move around (A)</p> Signup and view all the answers

Which of the following is a characteristic of trypanosomes?

<p>They have a spiral or crystalline rod inside their flagella (A)</p> Signup and view all the answers

What is the mode of transmission of Trichomonas vaginalis?

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

Which of the following groups of organisms includes Giardia intestinalis and Trichomonas vaginalis?

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

What is the characteristic feature of the apex of Apicomplexans?

<p>Organelles specialized for penetrating host cells and tissues (C)</p> Signup and view all the answers

What is the mode of transmission of Plasmodium malariae?

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

What is the result of Natural selection on the thalassaemia allele carriers in areas with high prevalence of malaria?

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

What is the life cycle of Apicomplexans dependent on?

<p>Two or more different host species (D)</p> Signup and view all the answers

What is the result of Plasmodium malariae infection in Red Blood Cells?

<p>Digestion of haemoglobin (A)</p> Signup and view all the answers

What is the approximate number of deaths per year caused by malaria?

<p>900,000 (B)</p> Signup and view all the answers

What is the route of transmission of Toxoplasma gondii from mother to fetus?

<p>Trans-placental transmission (C)</p> Signup and view all the answers

Which of the following is a characteristic of Apicomplexans?

<p>They require two or more different host species (D)</p> Signup and view all the answers

What is the primary function of photosynthetic protists in aquatic environments?

<p>To provide energy to other organisms (B)</p> Signup and view all the answers

Which of the following protist groups is characterized by the presence of lobe-shaped pseudopodia?

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

What is the disease caused by the protist Entamoeba histolytica?

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

Which of the following supergroups includes the protist group Acanthamoeba?

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

What is the role of wood-digesting protists in the gut of termites?

<p>To break down cellulose (C)</p> Signup and view all the answers

Which of the following protists is a symbiont in the development of coral reefs?

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

What is the disease caused by the protist Acanthamoeba?

<p>Eye infection and encephalitis (B)</p> Signup and view all the answers

Which of the following protist groups is characterized by the presence of flagella for motility?

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

What is the characteristic pigment responsible for the red color of red algae?

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

Which group of protists includes Volvox, a colonial freshwater green alga?

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

What is the characteristic shape of the pseudopodia in Amoebozoans?

<p>Lobe or tube shaped (C)</p> Signup and view all the answers

Which supergroup includes land plants, green algae, and red algae?

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

What is the name of the green alga commonly known as sea lettuce?

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

Which group of protists includes Nucleariids and Choanoflagellates?

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

What is the habitat of Gymnamoebas?

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

Which group of protists includes pathogenic species, such as Entamoebas?

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

Which of the following protist groups can form multicellular colonies?

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

What is the mode of nutrition in protists that contain chloroplasts and perform photosynthesis?

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

Which of the following supergroups includes land plants, green algae, and red algae?

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

Which of the following protist groups can have various modes of nutrition, including photosynthesis and phagocytosis?

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

What is the characteristic of protists that can absorb organic molecules or ingest larger food particles?

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

Which of the following supergroups includes the kingdoms of Animals, Plants, and Fungi?

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

What is the characteristic of the mitochondria in diplomonads?

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

What is the characteristic of the flagella in euglenozoans?

<p>They have a spiral or crystalline rod (B)</p> Signup and view all the answers

Which disease is caused by the parabasalid parasite Trichomonas vaginalis?

<p>All of the above (D)</p> Signup and view all the answers

What is the method of transmission of the diplomonad parasite Giardia intestinalis?

<p>Food-borne (A)</p> Signup and view all the answers

What is the characteristic of the nucleus in Trichomonas vaginalis?

<p>It is large (C)</p> Signup and view all the answers

Which supergroup includes diplomonads, parabasalids, and euglenozoans?

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

Which of the following groups of organisms is characterized by the presence of phycoerythrin pigment?

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

Which supergroup includes both Amoebozoans and Opisthokonts?

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

What is the characteristic shape of the pseudopodia in Gymnamoebas?

<p>Tube-shaped (C)</p> Signup and view all the answers

Which of the following groups of organisms includes Volvox and Caulerpa?

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

Which of the following is a characteristic of Entamoebas?

<p>They include pathogenic species (A)</p> Signup and view all the answers

What is unique about the life cycle of Apicomplexans?

<p>They require two or more different host species for completion. (B)</p> Signup and view all the answers

What is the function of the organelles at the apex of Apicomplexans?

<p>To penetrate host cells and tissues (B)</p> Signup and view all the answers

Which of the following is a consequence of Plasmodium malariae infection in red blood cells?

<p>Digestion of haemoglobin (C)</p> Signup and view all the answers

How is Toxoplasma gondii transmitted from mother to fetus?

<p>Through the trans-placental route (C)</p> Signup and view all the answers

What is the characteristic of the infectious cells called sporozoites?

<p>They infect liver cells (A)</p> Signup and view all the answers

What is the result of Natural selection on the thalassaemia allele carriers in areas with high prevalence of malaria?

<p>Selective survival of the carriers (D)</p> Signup and view all the answers

Which characteristic is common to both dinoflagellates and diatoms?

<p>They are both photosynthetic protists (A)</p> Signup and view all the answers

What is the primary function of cilia in ciliates?

<p>To move and feed (B)</p> Signup and view all the answers

Which group of protists includes golden algae and brown algae?

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

What is the role of oomycetes in the environment?

<p>They are decomposers or parasites (D)</p> Signup and view all the answers

What is the characteristic feature of pseudopodia in Rhizaria?

<p>They are threadlike (C)</p> Signup and view all the answers

What is the function of contractile vacuoles in ciliates?

<p>To regulate water balance (A)</p> Signup and view all the answers

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