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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
Write the complete name of the diagnostic test for AIDS.
Write a note on HIV.
Name the causative agent of gonorrhea.
Short answer question.
Give the name of causal organism of syphilis and write on its symptoms.
Match the following
| Column I | Column II |
| a. AIDS | i. Antibody production |
| b. Lysozyme | ii. Activation of B-cells |
| c. B-cells | iii. Immunoglobulin |
| d. T-helper cells | iv. Tears |
| e. Antibody | v. Immunodeficiency |
Write a short note on AIDS.
What is glans penis?
AIDS is not transmitted by contact with a patient’s clothes.
HIV-
What are the various routes by which transmission of human immunodeficiency virus takes place?
Value based question
How can informational efforts change people’s HIV knowledge and behaviour?
Write the preventive measures of STDs.
The common means of transmission of AIDS is ______.
World AIDS day is ______.
The sexually transmitted disease, that can affect both the male and the female genitals and may damage the eyes of babies born of infected mothers is ______.
A sexually transmitted disease symptomised by the development of chancre on the genitals is caused by the infection of ______.
Hepatitis-B, AIDS and genital herpes are the STDs that can be cured.
Which of the following sexually transmitted diseases is NOT completely curable?
Veneral diseases can spread through:
- Using sterile needles
- Transfusion of blood from an infected person
- Infected mother to foetus
- Kissing
- Inheritance
Choose the correct answer from the options given below.
STDs are a threat to reproductive health. Describe any two such diseases and suggest preventive measures.
Give two examples of sexually transmitted diseases.
Which one of the following group include sexually transmitted disease?
Expand the following abbreviation:
PID
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:
AIDS
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
