Parasites Flashcards
What is the name given to parasites that live on the surface of the host?
Ectoparasites
What is the name given to parasites that live in the host?
Endoparasites
How many hosts does the ‘normal’ parasite require and why?
More than one. The eggs sometimes mature in an intermediate host.
What is a host?
The organism that the parasite lives in/on.
What is a Definitive host?
The host that the mature parasites live on.
What is the intermediated Host?
The host that the parasite lives on whilst developing.
What is a vector?
A living host that transports the parasite from one host to another.
What does Symbiotic mean?
A close and often long-term interaction between two or more species.
What does Parasitism mean?
A non-mutual symbiotic relationship between species.
What are invertebrates?
An organism that doesn’t have a spinal column i.e star fish
What is the correct name for a worm?
Helminth
What are the two sub categories of worms?
Platy Helminths - Flat Worms
Nemat Helminth - Round Worms
List 3 characteristics of Helminth.
Multi cellular
Eukaryotic
Invertebrates
What are the two types of Round Worm?
Pin worms & Hookworms
What are the two types of Flay worm?
Tape worm & Flukes
What are the characteristics of Round worm?
Long thin non-segmented bodies
Anterior mouths and a long digestive track
There internal cavity is filled full of fluid
They contain muscles
Have different sexes.
Describe a flat worm
Long flat bodies No digestive tract Very long lay millions of eggs attach to the intestine segmented
