Parasites definitions

  • Created by: PaigeJC
  • Created on: 23-02-17 20:21
Define parasitism
A relationship between two organisms where only one organism benefits from the interaction but this is to the detriment (harm) of the other
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Define mutualism
An interaction between organisms of different species, where both organisms benefit from the interaction
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Define commensalism
An interaction between two organisms where only one organism benefits, but this is not to the detriment (harm) of the other
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Define facultative parasite
A parasite which may survive in the absence of the host (eg. opportunistic pathogens)
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Define obligate parasite
At some or all stages of life cycle the parasite cannot survive in the absence of the host
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Define endoparasite
Parasites which live internally in the host
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Define ectoparasite
Parasites which live on the outer surface of the host
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Define definitive host
The host in which a parasite reaches maturity and sexual reproduction may occur
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Define intermediate host
The host that harbors the parasite for a transition period
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Define permissive host
A host not usually used by parasites but still allows life cycle completion
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Define non-permissive host
A host in which the parasite cannot complete its life cycle
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Define reservoir host
Temporary host used in the absence of the natural host
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Define paratenic host
Host used for transport
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Define biological vector
A vector needed by the parasite to complete part of its lifecycle
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Define mechanical vector
A vector which mechanically spreads the parasite but is not used in the parasite's life cycle
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Define direct life cycle
Parasitic stages occur in/on only one host
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Define indirect lifecycle
An intermediate host is needed for the development of some stages of the parasite
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Other cards in this set

Card 2

Front

Define mutualism

Back

An interaction between organisms of different species, where both organisms benefit from the interaction

Card 3

Front

Define commensalism

Back

Preview of the front of card 3

Card 4

Front

Define facultative parasite

Back

Preview of the front of card 4

Card 5

Front

Define obligate parasite

Back

Preview of the front of card 5
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