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Flashcards in Eukaryotes Deck (22)
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1

What is a parasite

An organism that is on or in a host causing damage to the host

2

Pathogen vs parasite

Parasites are bigger protozoa while pathogens are smaller

3

Define pathogens

Bacteria, viruses, fungi

4

Define parasites

Protozoa, anthropods, helminths

5

Describe some characteristics of fungi

Unicellular ,microscopic (yeasts) and multicellular forms(molds)
Most free living, terrestrial
Important as decomposers and economically

6

What are some fungi diseases in humans

Superficial mycoses and systematic mycoses

7

What is the example for systematic mycoses and the disease it leads to

Coccidioides immitis

Coccidioidomycosis (Valley fever)

8

What is the example for superficial mycoses and the disease it leads to

Candida albicans

Candidiasis (yeast infection, thrush, diaper rash)

9

Describe the characteristics of protozoa

Microscopic, unicellular organisms
Most free living, aquatic
Important in food chains and as decomposers
Asexual(fission) and sexual reproduction
Many form cysts for dispersal, survival
Parasites often use fecal oral transmission

10

What are some protozoa diseases in humans

Flagellates, amoebas, apicomplexans(sporozoans)

11

What is the example of flagellates in the disease it leads to

Giardia lamblia

Giardiasis

12

What is the example for amoebas in the disease it leads to

Entamoeba histolytica

Amebiasis/ Amebic dysentery

13

What is the example of apicomplexans and the disease in leads to

Plasmodium falciparum

Cerebral malaria/severe malaria

14

Describe the characteristics of anthropods

Insects vs. arachnids
Ectoparasites
Most important as vectors of diseases

15

What are the diseases of anthropods in humans

Ectoparasites and vectors

16

What is the example for ectoparasites and the disease it causes

Sarcoptes scabiei var. hominis

Scabies

17

What are the characteristics of helminths

Parasitic worms: nutrients from host

Complex life cycles Ofter with one or more intermediate hosts and a definitive host

Points of entry: contaminated food and water, vectors, skin

Many use fecal oral transmission

18

Name the diseases in humans of Helminths

Nematodes, cestodes(tapeworms), trematodes(flukes)

19

What is the example for nematodes and the disease it leads to

Ascaris lumbricoides(Giant human intestinal roundworm)

Ascariasis

20

Name the example of cestodes in the disease it leads to

Taenia solium

Taeniasis or cysticercosis

21

Name the example for trematodes and the disease it leads to

Schistosoma mansoni

Schistosomiasis

22

Are all eukaryotes pathogenic

No