Biology of Paramecium and Eimeria Life Cycles

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Questions and Answers

What type of reproduction occurs in Paramecium?

  • Sexual reproduction (Conjugation) and Asexual reproduction (correct)
  • Budding only
  • Binary fission only
  • Only sexual reproduction (Conjugation)

Which phase is characterized by the production of merozoites in the life cycle?

  • Sporogony
  • Gametogony
  • Zygote formation
  • Merogony (schizogony) (correct)

In the life cycle of Eimeria tenella, what differentiates a macrogamont from a microgamont?

  • Microgamont is responsible for zygote formation
  • Macrogamont produces macrogametes (correct)
  • Macrogamont produces microgametes
  • Microgamont is multinucleated

What genus is characterized by an important Apicomplexa species that causes malaria?

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

What is a defining feature of the trophozoite stage in the life cycle of coccidian species?

<p>Active feeding and growth stage (C)</p> Signup and view all the answers

Which of the following is NOT a stage in the general coccidian life cycle?

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

Which of the following correctly matches a species with its respective genus and phylum?

<p>Toxoplasma gondii - Phylum Apicomplexa (B)</p> Signup and view all the answers

During which stage does a zygote form in the life cycle of coccidian organisms?

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

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Study Notes

Paramecium caudatum

  • Kingdom: Protista
  • Subkingdom: Protozoa
  • Phylum: Ciliophora
  • Genus: Paramecium
  • Species: caudatum
  • Reproduction:
    • Asexual:
      • Merogony (schizogony)
    • Sexual:
      • Conjugation

General Coccidian Life Cycle

  • Life stages:
    • Trophozoites
    • Merozoites
    • Oocysts (sporozoites)
    • Zygote
    • Gametes
  • Processes:
    • Sporogony: formation of sporozoites
    • Gametogony: formation of gametes
    • Schizogony: asexual reproduction

General Eimeria Life Cycle

  • Life stages:
    • Sporozoites
    • Merozoites
    • Oocysts
    • Macrogamont
    • Microgamont
    • Macrogamete
    • Microgametes
    • Zygote
  • Processes:
    • Schizogony: asexual reproduction
    • Oocyst formation

Eimeria tenella

  • Kingdom: Protista
  • Subkingdom: Protozoa
  • Phylum: Apicomplexa
  • Class: Sporozoea
  • Genus: Eimeria
  • Species: tenella

Toxoplasma gondii

  • Life cycle:
    • Includes stages in different hosts, including cats

Plasmodium vivax

  • Kingdom: Protista
  • Subkingdom: Protozoa
  • Phylum: Apicomplexa
  • Class: Sporozoea
  • Genus: Plasmodium
  • Species: vivax

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