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प्रश्न
What is the mechanism by which the AIDS virus causes deficiency of immune system of the infected person?
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उत्तर
- After entering the body of an infected person, the AIDS virus enters the macrophage.
- Here, its RNA genome is copied into viral DNA by the reverse transcriptase enzyme, which then integrates into the cell’s DNA and directs the formation of virus particles in the infected cells.
- The macrophage continues to produce the virus and acts as a production factory for HIV.
- HIV enters the helper T-lymphocyte, replicates itself, and produces progeny viruses.
- The progeny viruses present in the blood attack other helper T-lymphocytes.
- This process is repeated again and again, as a result of which the number of T-lymphocytes in the infected person’s body continues to decrease.
- The patient continuously suffers from fever and diarrhoea; weight keeps decreasing, and the patient’s immunity becomes so low that he is unable to fight these types of infections.
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संबंधित प्रश्न
Explain the process of replication of a retrovirus after it gains entry into the human body.
Sketch and Label the 'Structure of HIV'.
‘HAART’ is suggested for the treatment of __________
(A) malaria
(B) cancer
(C) AIDS
(D) high chloesterol level
- What precaution(s) would you recommend to a patient requiring repeated blood transfusion?
- If the advise is not followed by the patient, there is an apprehension that the patient might contract a disease that would destroy the immune system of his/her body. Explain with the help of schematic diagram only how the immune system would get affected and destroyed.
Write a note on HIV.
Mention the causative agent and the preventive measures for the following: Gonorrhoea
Short answer question.
Give the name of causal organism of syphilis and write on its symptoms.
A confirmatory test used for detecting HIV infection is _________.
What does the abbreviation AIDS stand for?
AIDS-
Communicable: AIDS: Non communicable: ______.
Higher Order Thinking Skill (HOT)
A leading weekly magazine has recently published a survey analysis which says that number of AIDS patient in the country is increasing day by day. The report says that the awareness among the people about AIDS is still very poor. You are discussing the magazine report in your class and a team of your class decides to help people to fight against the dreadful disease.
- What problem you face when trying to educate the people in your village near by your school?
- How do you overcome the problem?
AIDS is ______.
The causative agent of malaria is a ______
All of the following are modes of transmission of HIV, EXCEPT ______.
From the sexually transmitted diseases mentioned below, identify the one which does not specifically affect the sex organs ______.
The common means of transmission of AIDS is ______.
World AIDS day is ______.
Which of the following will not be useful as a prevention in acquiring STDs?
STDs can be considered as self-invited diseases. Comment.
Suggest the reproduction-related aspects in which counselling should be provided at the school level.
‘An HIV patient normally doesn't die of ‘AIDS’, but death is caused due to many other infections.’ Do you agree with the statement? Give explanatory reasons in support of your answer.
Give two examples of sexually transmitted diseases.
Which one of the following group include sexually transmitted disease?
With the help of a flow chart, illustrate how an infected animal cell can survive while viruses are being replicated or released.
All STDs do not affect the genital organs. Justify the statement.
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
NACO
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
HIV
