PROTOZOA Flashcards
equipped with locomotory organelle
Sarcodina/Amoeba
types of Intestinal Amoeba
E. histolytica
E. dispar
E. coli
E. pollecki
E. hartmanni
E. gingivalis
Endolimax nana
T. butschii
the only pathogenic (can cause amoebiasis)
E. histolytica
TROPHOZOITE ONLY (no cystic stage)
E. gingivalis
types of Free Living Amoeba
Naegleria fowler
Acanthamoeba
Opportunistic Amoeba
Free Living Amoeba
can reach the brain and can be found everywhere
Free Living Amoeba
Infective stage (in cases of E. gingivalis it can’t infect since it has trophozoite only)
Cystic stage
Vegetative state
“feeding stage”
Vegetative state – “feeding stage”
Trophozoite
Active state
“infective stage”
Active state – “infective stage”
Cyst
(penetrates the intestinal wall)
Tissue invader
Tissue invader (penetrates the intestinal wall)
Trophozoite
(no capability to penetrate)
Non-tissue invader
Non-tissue invader (no capability to penetrate)
Cyst
(sensitive to water)
Susceptible to damage
Susceptible to damage (sensitive to water)
Trophozoite
(cyst is covered with thick cell wall)
Resistant to damage
Resistant to damage (cyst is covered with thick cell wall)
Cyst
Can only be stained with permanent stain
Trophozoite
Can be stained by iodine
Cyst
Motile (pseudopods)
Trophozoite
Immotile
Cyst
