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Trace the route of Sporozoite of Plasmod...

Trace the route of Sporozoite of Plasmodium when it enters the human body through the bite of infected female Anopheles mosquito till its entry into the R.B.C.

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Parasite (sporozoites) reach the liver through blood and reproduces asexually in liver cells, bursting the cell and releasing into the blood. Released parasites infect new red blood cells.
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(a) Name the stage of plasmodium that gains entry into the human body. (b) Trace the stages of in the body of female anopheles after its entry. (c) Explain the cause of periodic recurrence of chill and high fever during malarial attack in humans.

Trace the life-cycle of malarial parasite in the human body when bitten by an infected female Anopheles.

Read the statements given below. Identify which of them are true and which of them are false. Select the correct option after referring to the table. I. Malaria is caused by a protozoan know as plasmodium. II. Plasmodium vivax malaria is the most serious one and can be fatal . III. Plasmodium enters the female body by the bite of the female Anopheles mosquito. IV. The parasites initially attack the liver cells and then multiple in the WBCs causing their rupture.

The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in

The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in

The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in

The sporozoites that cause infection, when a female Anopheles mosquito bites a person, are formed in

Assertion . Sporozoites of malaria parasite enter human body by biting of new born female Anopheles whose mother was carrier . Reason. Male and female gametocytes of malaria parasite develop in human intestine.

Study carefully the following stages of life cycle of malarial parasite i.e., Plasmodium. Arrange these stages in the correct sequence and select the correct answer. 1. Sporozoites leave the blood stream and enter the liver cells of man. 2. Sporozoites present in the salivary glands of female Anopheles mosquito are injected into the blood stream of man. 3. The parasite reproduces asexually in RBCs, resulting in bursting of RBCs and causing the cycles of fever, relased parasites infect new RBCs. 4. The parasite reproduces asexually in liver cells, ultimately causing the rupturing of cells. 5. Two types of gametocytes i.e., microgametocytes and macrogametocytes develop in the RBCs. 6. Female Anopheleles mosquito takes up the gametocytes with blood meal of an infected person. 7. Mature infective stage of the parasite i.e., sporozoites escape from intestine and migrate to the mosquito's salivary glands. 8. Fertilisation and developmental stages of the parasite take place in mosquito's stomach.

(i) Which organ of the human body is initially affected when bitten by an infected female Anopheles ? Name the stage of the parasite that infects this organ. (ii)Explain the events that are responsible for chill and high fever in the patient.

XII BOARD PREVIOUS YEAR PAPER ENGLISH-XII BOARDS-SECTION-A
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  9. Mention two objectives of-setting up GEAC by our Government.

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  10. Write the palindromic sequence that EcoRI recognises.

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  11. Trace the route of Sporozoite of Plasmodium when it enters the human b...

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  12. List any two characters of Pea plants used by Mendal in his experiment...

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  13. Name the disorder caused due to the absence of one of the X-chromosome...

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  14. Write one difference between binary fission and budding.

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  15. Mention two objectives of-setting up GEAC by our Government.

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  16. Write the palindromic sequence that EcoRI recognises.

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  17. Trace the route of Sporozoite of Plasmodium when it enters the human b...

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  18. List any two characters of Pea plants used by Mendel in his experiment...

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  19. Name the disorder caused due to the absence of one of the X-chromosome...

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  20. Write one difference between binary fission and budding.

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