Advertisements
Advertisements
प्रश्न
How does the human body respond when vaccine is introduced into it?
उत्तर
In vaccination, a preparation of antigenic proteins of pathogen or inactivated / or weekened pathogen (vaccine) are introduced into the body. The antibodies produced in the body against these antigens would neutralise the pathogenic agents during actual infection. The vaccines also generate memory – B and T-cells that recognise the pathogen quickly on subsequent exposure and overwhelm the invaders with a massive production of antibodies.
APPEARS IN
संबंधित प्रश्न
Write the full forms of AIDS.
Write the full forms of: TAB
Write the full forms of: STD
Answer the following question:
Name the antibody which is most effective in allergies.
State the role of the thymus as a lymphoid organ. Name the cells that are released from it and mention their function.
____________ are previously sensitized cells which retain the sensitization memory for a long time in the future.
Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.
All are forms of vaccines, EXCEPT ______.
Match column I with column II and choose the correct option.
| Column I | Column II | ||
| i. | Specificity | a. | Lymphocytes produced against each particular foreign molecule |
| ii. | Diversity | b. | Self-cells are not attacked by immune system of the own body |
| iii. | Memory | c. | Immune system works against multiple pathogens |
| iv. | Discrimination between self and non-self | d. | Stronger immune response on second encounter |
Production of which of the following is stimulated by secretin hormone?
