Protists And Parasites

Question 1

Sporozoans

Answer 1

Cilia- causes malaria. Complex lifecycle which relies on a certain species of mosquito to be spread

Question 2

Sacrodinians

Answer 2

Pseudopodea - closely related to the common harmless pond amoeba. Spread through contaminated food and water.
E.g. Entamoeba

Question 3

What is a Vector

Answer 3

A vector transports a parasite from one organism to another.

Question 4

Ectoparasite attachment features

Answer 4

Attach to the external surface of the host. Use hooks and suckers for mechanical attachment. Plant ectoparasites use haustoria, root like structures to attach and tap into the host nutrients.
E.g. Fluke worm

Question 5

The life cycle of parasites

Answer 5

The primary host carries the adult parasite.
The secondary or intermediate host carries the larval stages.
E.g. Malaria, primary host - mammal, secondary host - mosquito

Question 6

Flagellates

Answer 6

A flagellated organism is easily recognised in the blood of the host. Transmitted by the tsetse fly between hosts. E.g. Trypansomnia