Trypanosoma shows the phenomenon of
amorphism
dimorphism
trimorphism
polymorphism
Correct Answer :
D. polymorphism
Related Questions
The disease caused by Entamoeba gingimlis is transmitted by
flies
kissing
air
mosquitoes
The cysts of E.histolytica develop in an infected individual in the
intestinal wall
lumen of intestine
tissues of man
areas of metastatic inversion
The life-cycle of malarial parasite in liver is called
erythrocytic stage
pre-erythrocytic stage
exo-erythrocytic stage
post-erythrocytic stage
Mild tertian malaria is caused by
Plasmodium vivax
Plasmodium falciparum
Plasmodium ovale
Plasmodium malariae
According to Whittaker's system of classification, all the living organisms are classifed into 5 kingdoms and Viruses are placed under
Monera
Protista
Protoctista
None of these
The resultant cells of schizogony in the life history of malarial parasite are
schizonts
merozoites
ookinetes
sporozoites
Trypanosomiasis is a disease, transmitted by vector
Louse
Tsetse fly
Mayfly
Firefly
The mode of life of Plasmodium in man and mosquito respectively is
intracellular in both
intercellular in both
intracellular and intercellular
intercellular and intracellular
Vector can be defined as
disease transmitting host
natural reservoir of disease causing organism
pathogenic organism
any kind of disease transmitting organism
A digenic protozoan parasite is
Monocystis
Amoeba
Plasmodium
Opalina
Nitrogenous wastes in Amoeba are expelled through
plasmalemma
pseudopodia
hyaline cap
contractile vacuole
In Paramecium, proteins are digested
partly in endoplasm and partly in food vacuole
during the acid phase of the food vacuole
during the alkaline phase of the food vacuole
both (b) and (c)
When the causes ot malaria was not known, it was supposed to be cuased by
dirty water
foul air
mosquito
housefly
The shivering, a characteristic symptom of malaria, occurs when
sporozoites enter the blood
metacryptozoites are liberated from the liver cells
merozoites are liberated from RBC with toxin
schizonts are formed in the RBC
Oocyst of Plasmodium develops from
female gametocyte
fertilised microgamete
fertilised macrogamete
ookinete
The erthrocytic phase of the life cycle of Plasmodium passes in
the stomach of female amopheles mosquito
parenchymatous cells of liver of man
erythrocytes of man
erythrocytes and blood of man
Attack of malaria occurs every fourth day when patient is infected by
Plasmodium ovale
Plasmodium malariae
Plasmodium falciparum
Plasmodium vivax
Under unfavourable conditions, the Amoeba reproduces by
binary fission
conjugation
encystment
endomixis
All stages in the life cycle of malarial parasite are haploid except
gamout
ookinete
schizont
sporont
n Amoeba, when transferred from pond water to distilled water, forms
contractile vacuoles at a slower rate
contractile vacuoles at a faster rate
contractile vacuoles at the same rate
no contractile vacuoles
Kala-azar is a disease caused by
Trypanosma gambiense transmitted by Tsetse fly
Leishmania donovani transmitted by sandfly
Taenia solium transmitted by infected pork
Wuchereria bancrofti transmitted by Culex
The cell anus in some protozoans known as
cytoproct
peristome
cytostome
none of these
Process of reconstitution of nuclei in a single paramecium without fusion of gametic nuclei is
endomixis
hemimixis
cytogamy
none of these
The ecological niche of Entamoeba histolytica is
small intestine of man
arge intestine of man
fresh water body such as ponds, rivers etc.
stagnaant water
The oriental sores in human skin are caused by
Leishmania tropica
Phlebotomus
Balantidium
Leishmania donovani
The process of reconstitution of macro-nulceus in Paramecium without any change in micro-nucleus is called
Cytogamy
Hemimixis
Endomixis
Autogamy
In Plasmodium, gametocytes are formed by j the trophozoites in the RBS of man. They do not develop fully in RBC because of
antibodies present in blood
antigens present in blood
higher temperautre of blood
lower temeprature of blood
The function of neuro-motor system of Paramecium is
co-ordination of various external stimuli
co-ordination of ciliary beat
control of contractile vacuole
any of these
The disease caused by Trypanosoma cruzi is
sleeping sickness
chaga's disease
kala azar
oriental sore
The zoological name of giant amoeba is
Amoeba proteus
Arcella sp.
Chaos chaos
Ovale sp.