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Sandfly play significant role in spreadi...

Sandfly play significant role in spreading kala azar bacause they
I. Suck blood only from the patients suffering from kala azar.
II. Covert amastigote into promastigote.
III. Engulf amastigote at the time of blood sucking from the infected persons.
IV. inject promastigote into the body of non-infected person at the time blood sucking.

A

I and II

B

II and III

C

II, III and IV

D

III and Iv

Text Solution

Verified by Experts

The correct Answer is:
C
Kala - azar is a slow progressive indigenous disease caused by a protozoan parasite leishmania and spread by the bite of certain types of vector in sandflies. Sandflies takes a blood meal from the patient of kala-azar and injects its macrophages infected with amastigotes. In the midgut of sandfly, these amastigotes get transformed into promastigotes and migrate to proboscis. Amastigotes again get transferred into the skin of host (non-infected person) at the time of blood sucking.
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ARIHANT NEET-PROTISTA-CHAPTER EXERCISES ((C) MEDICAL ENTRANCES GALLERY (Collection of questions asked in NEET and in various Entrance Exams))
  1. Which of the following diseases is caused by a protozoan

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  2. Which group of organisms possesses a protein rich layer called pellcle

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  3. Sandfly play significant role in spreading kala azar bacause they I....

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  4. The time interval of appearance of fever in the malaria patients depen...

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  5. The mature infective stage of malaria parasite which is transferred fr...

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  6. Which of the following does not belong to the kingdom Protista

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  7. Unicellular algae, diatoms and protozoans are members of

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  8. From the list below, select the group that includes protozoa, protista...

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  9. Protista obtain their food as

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  10. These organisms are fungus like in one phase of their life cycle and A...

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  11. Which one single organism or the pair of organisms is correctly assign...

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  12. Motile elongate zygote of Plasmodium occurs in

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  13. Excretion in amoeba occurs through

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  14. Macronucleus and micronucleus are the characteristic feature of

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  15. What is true about Trypanosoma?

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  16. The methods of dispersal in amoeba is

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  17. Triatoma infestans is the intermediate host in the life cycle of

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  18. Schizogony occurs in

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  19. Which of the following is not matched correctly

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  20. Which one of the following is a characteristics feature of chryosophyt...

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