Microbio parasites two Flashcards
Characteristics of protozoa (6)
has organelles anaerobic of aerobic absorb nutrients or have "mouth" unicellular, eukaryotic animals many are part of normal microbiota asexual reproduction
what does protozoa feed on? (4)
bacteria
other protozoa
organic matter
tissues of the host
How does protozoa move? (4)
pesudopodia, flagella, gliding movements or cilia
types of hosts for protozoa and what does infection cause
Host specific or broad spectrum
zoonotic
cause chronic infections
many form cysts in the environment or in a host
zolite
little creature
sporozoite
invective form
trophozoite
form which feeds and grows
trachyzoite
form which divides rapidly
bradyzoite
form which divides slowly
merozite
many
Reproduction of protozoa (3)
binary fission, budding, schizogony
schizogony
exponential increase in numbers
destruction of host cells in proportion to the infection
stops after a fixed number of repitions
sexual reproduction of protozoa (3)
gametogony or sporogony
conjugation