LAB: Protozoa and Helminths Flashcards Preview

Microbiology > LAB: Protozoa and Helminths > Flashcards

Flashcards in LAB: Protozoa and Helminths Deck (11):
1

Protozoa

  • single-celled, heterotrophic
  • clear
  • aquatic environment, moist
  • most are not pathogens

2

Amoeba proteus

  • agent of amebic dysentery
  • be able to label nucleus and  pseudopodia
  • objective lense at 10x
  • stained pinkish

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3

Trypanosoma

  • blood parasite (Chaga's disease; African sleeping sickness)
  • label the erythrocytes (red blood cell) and flagella
  • obj 40x
  • transmitted by insects
  • stained purple

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4

Paramecium

  • free-living
  • label cilia
  • stained blue
  • obj 10x?

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5

Plasmodium

  • non-motile
  • blood parasite, inside liver and blood cells
  • Malaria
  • vector is a female anopheles mosquito
  • label erythrocytes and ring stage
  • obj 100x

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6

​Helminths

  • multicellular worms: roundworms vs flatworms

7

Ascaris

  • Phylum Nematoda 
  • intestinal roundworm parasite
  • distinguish between male and female; label spicule of male
  • human host
    • fecal oral transmission

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8

Enterobius

  • Phylum Nematoda
  • pinworm; intestinal roundworm parasite
  • note pointed female tail for depositing eggs
  • human host
    • fecal oral transmission
    • butts

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9

Trichinella

  • Phylum Nematoda
  • roundworm parasite of final host; larvae encyst in muscle (pigs)
  • label larvae  and muscle tissue

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10

Fasciola

  • Phylum Platyhelminthes
  • fluke: observe adult specimen in jar, noting flat body

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11

Taenia

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  • Phylum Platyhelminthes
  • tapeworm; intestinal parasite of carnivores
  • slide has 4 sections
  • label scolex and label hooks and suckers
  • observe immature proglottids (not filled with eggs)
  • observe gravid/mature proglottids (filled with eggs)

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