Please enable JavaScript.

Coggle requires JavaScript to display documents.

PROTOZOA (Eimeria (Eimeriosis in RABBITS, Eimeriosis in SMALL RUMINANTS,…

- - - - Ectoplasm (outer layer)
        
        In some, may be very dense - "cuticle"
        
        In some protozoa, forms elastic wall - "pellicle"
      - Endoplasm (inner, gelatinous layer)
    - - Pseudopods
        
        Temporal forms of ectoplasm
      - Flagella
        
        Filamentous growths with 9 peripherally spaced and one central pair of fibrils coming out of a basal granule (kinetoplast)
      - Cilia
        
        Short fibrils with a structure similar to flagella; usually many spread diffusely over surface, or in rows
      - Undulation membrane
        
        Protoplasmic fold, on the edge of which a flagellum (trypanosomes and trichomonas) passes
      - Apical complex
        
        Device to help some protozoa (Eimeria, Babesia etc.) penetrate host cells; located at front and resembles a spiral spring
  - - - Nutrients are absorbed through body surface
    - - Nutrients are taken up by organoids (cytostome) and taken into food vacuoles
  - - - Binary fission
        
        Starts with division of nucleus, then cytoplasm
      - Budding
        
        Variant of binary fission, typical for yeasts
        
        Nucleus/cytoplasm divide simultaneously; new cell initially smaller, like a pimple
      - Endodyogeny
        
        Formation of 2 daughter cells inside mother; progeny is released by rupture of mother cell
      - Schizogony
        
        Multiple fissions
        
        Nucleus divides successively to produce multinucleated cell; cytoplasm then divides to match
    - - Copulation
        
        Fusion of male/female gametes => zygote
        
        Division of zygote is called 'sporogony' and produces 'sporozoites'
      - Conjugation
        
        Nuclear and cytoplasmic material is exchanged between two ‘conjugates’, after which they continue their own lives