LAB: Protozoa and Helminths Flashcards
1
Q
Protozoa
A
- single-celled, heterotrophic
- clear
- aquatic environment, moist
- most are not pathogens
2
Q
Amoeba proteus
A
- agent of amebic dysentery
- be able to label nucleus and pseudopodia
- objective lense at 10x
- stained pinkish
3
Q
Trypanosoma
A
- blood parasite (Chaga’s disease; African sleeping sickness)
- label the erythrocytes (red blood cell) and flagella
- obj 40x
- transmitted by insects
- stained purple
4
Q
Paramecium
A
- free-living
- label cilia
- stained blue
- obj 10x?
5
Q
Plasmodium
A
- non-motile
- blood parasite, inside liver and blood cells
- Malaria
- vector is a female anopheles mosquito
- label erythrocytes and ring stage
- obj 100x
6
Q
Helminths
A
- multicellular worms: roundworms vs flatworms
7
Q
Ascaris
A
- Phylum Nematoda
- intestinal roundworm parasite
- distinguish between male and female; label spicule of male
- human host
- fecal oral transmission
8
Q
Enterobius
A
- Phylum Nematoda
- pinworm; intestinal roundworm parasite
- note pointed female tail for depositing eggs
- human host
- fecal oral transmission
- butts
9
Q
Trichinella
A
- Phylum Nematoda
- roundworm parasite of final host; larvae encyst in muscle (pigs)
- label larvae and muscle tissue
10
Q
Fasciola
A
- Phylum Platyhelminthes
- fluke: observe adult specimen in jar, noting flat body
11
Q
Taenia
A
- 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)
