protozoa in detail

  1. describe ectoplast
    • darker than endoplast
    • f(x): protection, ingestion, excretion, respiration, movement
  2. describe endoplast
    • has nucleus, lighter
    • f(x): digestion (enzyme), reproduction
  3. what are the three types of  appendages that comes from ectoplast
    • pseudopodia
    • cilia
    • flagella
  4. describe the nucleus structure
    • composed of nuclear membrane
    • contains karysome, endosome
  5. describe cytokinesis
    • can store glycogen, fat, different types of amino acid
    • have organic and inorganic matter
    • can move diffuse, cause problem, damage, disease
    • some have sexual/asexual reproduction
    • very complex
  6. describe the the types of movement
    • slow movement: usually free living amoeba, pseudopodia
    • fast movement: eruptive movement, usually sarcodina that is more commonly found in human body than animals
  7. how does flagella damage cells?
    beating movement can cause tissue damage by inducing bleeding
  8. what type of protozoans are cilia most commonly found? complex or simple

    name an example
    • complex
    • ex. Balantidium coli
  9. describe the three types of binary fission in protozoans (flagellets, cilliates, sarcodina)
    • flagellates: longitudinal
    • ciliates: transverse
    • sarcodina: oblique
  10. what protozoan undergoes this type of binary fission?
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  11. what protozoan undergoes this type of binary fission?
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  12. what protozoan undergoes this type of binary fission?
    "sarcodina" or amoeba
  13. what are the three types of asexual reproduction
    • binary fission: 1 cell divides into 2 cells
    • multiple fission: 1 cell with multiple nuclei divide into multiple cells
    • schizogamy: organism splits into asexual and sexual parts
  14. what are the types of sexual reproduction?
    • conjugation: temporary union of two cells where both nucleus transfers
    • syngamy: permanent union where sperm gets inside egg and becomes a zygote. Ex) sexual intercourse
  15. what are the types of gametes (2)
    • isogamete: 2 gametes resemble each other (same size)
    • anisogamete: 2 gametes are different from each other with macro and micro gametes. Most gametes are this type
  16. what is excretion
    • releasing waste material
    • majority of protozoans use mouth for excretion
    • some ciliates has cytophage (anus)
  17. what is a cyst
    • inactive stage where a membrane that surrounds the cytoplasm
    • used for protection
    • excretion of cytoplasm composed of protein and sugar
  18. what conditions lead to the formation of cysts?
    • decrs in food
    • change in pH
    • dessication (extreme dryness)
    • incrs in catabolic or waste material
    • change in amount of O2
  19. what are the three ways on how to ID parasites
    • pathogenasity: how parasites damage, cause and inflammation, or lyse the cell
    • symptomology: organisms that have obvious symptoms
    • transmission: direct, indirect, contamination, sexual contact
    • lab results
  20. what are the stage of pathogenacity
    • acute: begining stages
    • chronic: long term, much harder to get rid of
  21. most protozoa kills people at what stage of pathogenicity
  22. what are the 7 amoebas found in humans
    • entamoeba histolytica
    • entamoeba coli
    • endolinax nana
    • iodamoeba butchili
    • entamoeba gingivata
    • dientamoeba fragilis
    • entamoeba hartmani
  23. what stage of pathogenicity do bacteria kill people?
  24. what are 3 phases of protozoas
    • trophozoite: active phase, larger, can move, reproduce, ingest food and cause problem
    • pre-cyst: small, has less # of nuclei than cyst
    • cyst: formation comes from cytoplasm, # of nuclei increase, can have 2-8 nuclei
Card Set
protozoa in detail
talks about the morphology, movement, sexual reproduction