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[[Image:Flagella.jpg|thumb|right|150px|Flagella of ''E.coli'' - Nicolle Rager Fuller, National Science Foundation]]
 
[[Image:Flagella.jpg|thumb|right|150px|Flagella of ''E.coli'' - Nicolle Rager Fuller, National Science Foundation]]
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==Structure and function==
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==[[Protozoa Structure and Function]]==
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*Motile
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*Protozoa possess all the 'usual' organelles which are found in most animal cells
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**Nucleus, endoplasmic reticulum, mitochondria, Golgi bodies and lysosomes
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*Protozoa also possess other cellular structures, organelles and sub-cellular structures which enable an '''independent existence''' to be led
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*Cilia
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**Fine, short hairs covering the protozoal surface each arising from a basal body
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**Hairs beat in unison to enable the protozoa to move
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**Wafts food towards the '''cytostome''' (mouth opening)
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**E.g. ''Balantidium''
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*Flagellum
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**Contractile fibre arising from a basal body
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**Contracts in a whip like motion to propel protozoa
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**Attached to body of some protozoa by an '''undulating membrane'''
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**During movement, the organism's shape is maintained by microtubules in the pellicle
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**E.g. ''Trypanosoma''
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*Pseudopodia
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**Extensions of the cellular cytoplasm
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**Cytoplasm flows into the pseudopodia allowing movement of the protozoa
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**Also acts in a phagocytic manner surrounding food particles and enclosing it in a vacuole
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**E.g. ''Entamoeba''
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*Gliding
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**No obvious means of locomotion
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**E.g. ''[[Eimeria spp.|Eimeria]]''
      
==Nutrition and digestion==
 
==Nutrition and digestion==
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