Long Exam Flashcards
(128 cards)
-King Protista, Domain Eukarya
-Unicellular, eukaryotes that lack cell wall
Protozoa
The word protozoa came from the Greek word _________ meaning the first animal.
Protozoon
-Mostly heterotrophic and most free-living - scavenge on dead plants and animals and even feed on live bacteria and algae.
- a few are parasitic/pathogenic feed directly on host fluids or can actively feed on tissues.
Protozoa
-Microscopic (size ranges from 3-300 microns.)
- adapted to a wide range of habitats like fresh and marine waters, soil, plants and animals.
Protozoa
-Main limiting factor for survival is water.
- A large no of species can form cyst.
Protozoa
Protozoa with motile feeding stage
The trophozoite of Giardia
-It can survive adverse environmental conditions ( an important factor in the spread of disease like amoebic dysentry ).
Cyst
Protozoa reproduce asexually by _______.
Mitotic cell division and binary fission
Parasitic protozoan ones reproduce asexually inside the host cell by _______.
Multiple fission
Protozoan sexual reproduction is called ?
Conjugation
This one of the bases in classification of Protozoa.
Motility
This method of asexual reproduction, there is a separation of the parent cell into two new daughter cells.
Binary fission
This method the nucleus undergoes repeated division to produce a large number of nuclei. Each nucleus along with little bit of cytoplasm forms a membrane around it.
Multiple fission
4 main type classification of Protozoans.
-Flagellates
-Sarcodina
-Ciliates
-Sporozoates
Move by flagella or tail-like structure
Flagellates
Move by pseudopodia or false feet
Sarcodina
Move through cilia (fine hair-like structure attached to their body).
Ciliates
It is non-motile form protozoa
Sporozoates
Is a parasite that lives in the lower genital tract of women and the urethra and prostate of men
Trichomonas vaginalis
It lives as a parasite in the blood, lymph, lymph nodes, spleen, or cerebrospinal fluid of man and in the intestine of blood-sucking fly Glossina palpalis (Tsetse fly).
Trypanosoma gambiense
It can be found in lakes, ponds, rivers and streams worldwide, as well as in public water supplies, wells, cisterns, swimming pools, water parks and spas.
Giardia intestinalis
It is a species of Leishmania that causes leishmaniasis, a parasitic infection that is transmitted by the bite of an infected sandfly
Leishmania panamensis
Achlorophyllous, Eukaryotic, spore bearing
Fungi
Fjngi-like:glucan
Fungi: ___&&&
Chitin