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
Correct Answer :
B. contractile vacuoles at a faster rate
Related Questions
Schizont stage in the life cycle of malarial parasite occurs in
erythrocytes of man
stomach of Anopheles
salivary glands of Anopheles
blood of man
Characters that are more useful in classification of animals are
morphological features
homologous features
analogous features
none of these
Asexual reproduction during schizogony of malarial parasite is a kind of
binary fission
budding
fragmentation
multiple fission
The only stage of malarial parasite that can survive in the stomach of mosquito is
ookinate
oocyst
gametocytes
sporozoites
Amoeba secretes digestive enzymes to hydrolyse
starch
sugar
proteins
all of these and fats
Golgi cycle in Plasmodium occurs in man, in
blood
RBC
liver cells
stomach
African sleeping sickness or Gambiense fever is caused by
Entamoeba
Trypanosma
Leishmania
Trichomonas
The trophozoite of Entamoeba histolytica reproduces by
binary fission
sporulation
amitosis
mitosis
Trypanosoma is transmitted by
contamination
kissing
contagination
inoculation
In an electric field, the Paramecium moves
towards the negative pole
towards the positive pole
around to avoid effect of current
forms cyst and does not move
The digestive enzymes in Paramecium are secreted in
food vacuoles directly
lysosomes and then released into food vacuole
endoplasm and then pass into food vacuole
both lysosomes and endoplasm
The transmission of Entamoeba histolytica takes place by
female anopheles mosquito
air
kisisng
contaminated food and water
The intermediate host of malarial parasite is
Man
Female Anopheles
Culex
Monkeys
A digenic protozoan parasite is
Monocystis
Amoeba
Plasmodium
Opalina
In a Paramecium, the trichocysts are used for
fight or flight response
defence
offense
both (b) and (c)
Inoculation in malaria is out of question because
Plasmodium produces minute bodies
Plasmodium produces antitoxins
Plasmodium produces antitoxins and antibodies
All of these
A food vacuole develops in Paramecium at the distal end of
cytopharynx
oral grove
cytostome
oesophagus
Malarial parasites could best be obtained from a patient
an hour before rise of temperature
when temeprature rises with rigor
when temeprature comes down to normal
five hours after the temperature reaches normal level.
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)
Amoebiasis is caused by
Plasmodium vivax
Taenia solium
Entamoeba histolytica
Entamoeba gingimlis
Nuclear dimorphism is observed in
Entamoeba
Plasmodium
Paramecium
Trypanosoma
Trypanosomiasis is a disease, transmitted by vector
Louse
Tsetse fly
Mayfly
Firefly
Plasmalemma membrane covers thebody of
Taenia solium
Paramecium
Amoeba proteus
Plasmodium
Gametocytes of Plasmodium are formed in
liver of man
blood of man
RBC of man
stomach of female mosquito
The disease caused by Trypanosoma cruzi is
sleeping sickness
chaga's disease
kala azar
oriental sore
Malaria is a disease transmitted by the bite of
male Culex
female Culex
male A nopheles
female Anopheles
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
All stages in the life cycle of malarial parasite are haploid except
gamout
ookinete
schizont
sporont
The cilia in Paramecium are
all equal
all unequal
longer at posterior side
longer at anterior side
When the causes ot malaria was not known, it was supposed to be cuased by
dirty water
foul air
mosquito
housefly