Protozoa General Flashcards
________ are unicellular, eukaryotic organisms.
Protozoa are unicellular, eukaryotic organisms.
Like eukaryotic cells, protozoa have a ________, _________________, _____________, ____________ and _________.
Like eukaryotic cells, protozoa have a nucleus, endoplasmic reticulum, mitochondria, golgi body and lysosomes.
Locomotion is accomplished by __________, _________, ___________ or _______.
Locomotion is accomplished by pseudopodia, flagella, gliding movement or cilia.
Zoite
functional unit of protozoanontogeny; translates to “little animal”; invades cell and migrates
Sporozoite
infective form found in a sporulated oocyst
Trophozoite
form which feeds and grows
Merizoites
daughter cell resulting from schizogony
Tachyzoites
form which divides rapidly
Bradyzoites
form which divides slowly
Binary Fission
nuclei divide first followed by the cytoplasm
Budding
smaller individual form after nuclear division
Schizogony (Merogony)
nucleus divides repeatedly, ultimately resulting in a schizont containing many merozoites
Forms of asexual reproduction performed by protozoa
Binary Fission
Budding
Schizogony
Characteristics of asexually producing protozoa
Short generation time
Exponential increase in zoites
Destruction of host cell in proportion to infection
Stops after fixed number of repetitions
Sexual reproduction of protozoa occurs by ___________.
Sexual reproduction of protozoa occurs by gametogony or Sporogony.
Merizoite can become either a _____________ then to a macrogamete or __________ then several microgametes.
Merizoite can become either a macrogametocyte then to a macrogamete _or _microgametocyte then several microgametes.
When a microgamete fertilizes a macrogamete a _______ forms; then a wall forms around this and it becomes an ________.
When a microgamete fertilizes a macrogamete a zygote forms; then a wall forms around this and it becomes an oocyst.
In Phylum __________ locomotion occurs by psudopodia and or flagella.
In Phylum Sarcomastigophora locomotion occurs by psudopodia and or flagella.
Phylum _________ is characterized by locomotion by gliding without a locomotion organelle, a largerly intercellular lifecycle and sexual and asexual reproduction phases.
Phylum Apicomplexa is characterized by locomotion by gliding without a locomotion organelle, a largerly intercellular lifecycle and sexual and asexual reproduction phases.
Phylum ________ is characterized by its locomotion through cilia.
Phylum Ciliophora is characterized by its locomotion through cilia.
Order __________ is characterized as being haemoflagellates, parasites of the blood and as being trasmitted by biting insects.
Order Kinetoplastorida is characterized as being haemoflagellates, parasites of the blood and as being trasmitted by biting insects.
Order _____________________ is characterized as being flagellates primarily of the intestines.
Order Diplomonadorida Trichomonadorida is characterized as being flagellates primarily of the intestines.
Order _______ is characterized by being parasites of epithelial cells with sexual and asexual reproduction cycles occuring in the epithelial cells.
Order Eucoccidorida is characterized by being parasites of epithelial cells with sexual and asexual reproduction cycles occuring in the epithelial cells.
Order ________ is characterized as being parasites of blood cells, they have ticks for vectors and sexual reproduction occurs in the tick.
Order Piroplasmoridais characterized as being parasites of blood cells, they have ticks for vectors and sexual reproduction occurs in the tick.
