Definitions & Categories Of Parasites Flashcards Preview

Question 1

0

Symbiosis

Answer

Association of two species, primarily for getting food on the part of one or both members

Question 2

1

Commensalism

Answer

Association that is beneficial to one partner and the other is neither benefited nor injured

Question 3

2

Mutualism

Answer

Type of commensalism where associations are beneficial to both organisms

Question 4

3

Parasitism

Answer

Symbiotic relationship where one animal (the host) is to some degree injured through the activities of the other animal (the parasite). One species lives upon or within the other and has a metabolic dependence on the species

Question 5

4

Helminthic parasites

Answer

Wormlike invertebrates
-Nematode (roundworm)
-Cestode (tapeworm)
-Trematode (fluke)

Question 6

5

Protozoan

Answer

Unicellular eukaryotic microorganisms
-Rhizopods (amebas)
-Ciliates
-Flagellates
-Sporozoa

Question 7

6

Arthropods

Answer

Hard exoskeleton, jointed appendages
1. Lice
2. Bed bugs
3. Ticks
4. Fleas
5. Mites

Question 8

7

Rhizopods:
1. Organelles of locomotion?
2. Method of reproduction?

Answer

1. Pseudopods
2. Binary fission

Question 9

8

Ciliates:
1. Organelles of locomotion?
2. Method of reproduction?

Answer

1. Cilia
2. Binary fission

Question 10

9

Flagellates:
1. Organelles of locomotion?
2. Method of reproduction?

Answer

1. Flagella
2. Binary fission

Question 11

10

Sporozoa:
1. Organelles of locomotion?
2. Method of reproduction?

Answer

1. None
2. Schizogony/sporogony

Question 12

11

Nematode:
1. Morphology?
2. Sex?
3. Alimentary tract?
4. Intermediate host?

Answer

1. Spindle shaped
2. Separate sexes
3. Tubular
4. Variable

Question 13

12

Cestode:
1. Morphology?
2. Sex?
3. Alimentary tract?
4. Intermediate host?

Answer

1. Head with segmented body (proglottids)
2. Hermaphroditic
3. None
4. One

Question 14

13

Trematode:
1. Morphology?
2. Sex?
3. Alimentary tract?
4. Intermediate host?

Answer

1. Leaf shaped with oral and ventral suckers
2. Most are hermaphroditic
3. Blind
4. Two

Question 15

14

Trophozoite

Answer

Feeding, reproductive stage; sensitive to environment

Macroscopic Observation:
Higher numbers seen in liquid stool vs soft or formed

Liquid > soft > formed

Question 16

15

Cyst

Answer

Protective, infective stage, survives environment.

Macroscopic Observation:
Higher numbers seen in formed stool vs liquid or soft

Formed > soft > liquid

Question 17

16

Permanent stains for parasitology:

Answer

1. Wheatley Trichome Stain
2. Iron-hematoxylin stain
3. Acid-fast stain

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Definitions & Categories Of Parasites Flashcards Preview

Parasitology > Definitions & Categories Of Parasites > Flashcards

Symbiosis

Association of two species, primarily for getting food on the part of one or both members

Commensalism

Association that is beneficial to one partner and the other is neither benefited nor injured

Mutualism

Type of commensalism where associations are beneficial to both organisms

Parasitism

Symbiotic relationship where one animal (the host) is to some degree injured through the activities of the other animal (the parasite). One species lives upon or within the other and has a metabolic dependence on the species

Helminthic parasites

Wormlike invertebrates-Nematode (roundworm)-Cestode (tapeworm)-Trematode (fluke)

Protozoan

Unicellular eukaryotic microorganisms -Rhizopods (amebas)-Ciliates-Flagellates-Sporozoa

Arthropods

Hard exoskeleton, jointed appendages1. Lice2. Bed bugs3. Ticks4. Fleas5. Mites

Rhizopods:1. Organelles of locomotion?2. Method of reproduction?

1. Pseudopods2. Binary fission

Ciliates:1. Organelles of locomotion?2. Method of reproduction?

1. Cilia2. Binary fission

Flagellates:1. Organelles of locomotion?2. Method of reproduction?

1. Flagella2. Binary fission

Sporozoa:1. Organelles of locomotion?2. Method of reproduction?

1. None2. Schizogony/sporogony

Nematode:1. Morphology?2. Sex?3. Alimentary tract?4. Intermediate host?

1. Spindle shaped2. Separate sexes3. Tubular4. Variable

Cestode:1. Morphology?2. Sex?3. Alimentary tract?4. Intermediate host?

1. Head with segmented body (proglottids)2. Hermaphroditic3. None4. One

Trematode:1. Morphology?2. Sex?3. Alimentary tract?4. Intermediate host?

1. Leaf shaped with oral and ventral suckers2. Most are hermaphroditic3. Blind4. Two