Parasitology Lab Techniques: Helminthes

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10 Questions

Tremaroda is a type of Platyhelminths.

True

Cestode is a type of roundworm.

False

Helminthes are a type of parasitic worm.

True

Nematoda are classified as flatworms.

False

Platyhelminths have a leaf-like shape.

True

Tape worms are non-segmented.

False

The final host of Trematoda is a snail.

False

Cestoda requires one host to complete its life cycle.

False

Ascaris lumbricoides is a type of flatworm.

False

Fungi reproduce only sexually.

False

Study Notes

Platyhelminthes

  • Leafe shape, non-segmented, and monoecious
  • Includes Trematoda (Schistosoma) and Cestoda (Tapeworm)

Trematoda (Schistosoma)

  • Final host: human
  • Intermediate host: snail
  • Infective stage: cercaria
  • Causes disease: bilharziasis, transmitted by swimming in contaminated water

Cestoda (Tapeworm)

  • Includes T.solium (in pork) and T.sagenata (in beef)
  • Final host: human
  • Intermediate host: T.solium (pork) and T.sagenata (beef)
  • Infective stage: cycticercus found in muscle tissue
  • Causes disease: cycticercusis (in pork), transmitted by undercooked meat

Nematoda (Round Worm)

  • Includes Ascaris lumbricoides
  • Required one host to complete life cycle
  • Causes disease: ascariasis
  • Transmitted by contaminated food or water with Ascaris eggs
  • Has two types of eggs: fertilized (infected) and unfertilized (non-infected)
  • Has separate genders (diecious)

Fungi Kingdom

  • Eukaryotic organism including microorganisms like yeast, moulds, and mushrooms
  • Characteristics:
    • Cell wall
    • Filamentous structure (except yeast)
    • Single cell or multicellular
    • Dense, clear nucleus with chromatin threads and nuclear membrane
  • Reproduction: asexual by fragmentation, budding, or producing spores
  • Causes three types of illnesses:
    • Poisoning by mushrooms
    • Parasitic infection by yeast
    • Allergic reactions by moulds

This quiz covers the identification and characteristics of different types of helminthes, including Platyhelminths, Roundworms, Cestodes, and Nematodes. It is designed for 3rd-year lab technicians in medical laboratories.

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