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प्रश्न
Why is secondary immune response more intense than the primary immune response in humans?
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उत्तर
The secondary immune response is more intense than the primary immune response in humans because the memory B cells deal with the invading microbes by producing antibodies. The cells of the body remember that they have previously encountered this type of infection.
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संबंधित प्रश्न
How does the human body respond when vaccine is introduced into it?
Given below is a scheme of classifying immunity against human diseases. Fill up the types of immunity in the blanks 1-9.
Write the full forms of: BCG
Differentiate between: Innate immunity and acquired immunity
Write the full forms of: HIV
Write the full forms of: STD
Mention if the following statement is true (T) or false (F).
Treatment by the use of chemicals is known as allopathy.
Describe the structure of an antibody.
STRUCTURE OF ANTIBODY
Both B-cells and T-cells are derived from __________.
Enlist the four types of T- lymphocytes, responsible for immune response of our body.
Enlist any two features of Acquired immunity.
All of the following statements are true with respect to immunity, EXCEPT
____________ are previously sensitized cells which retain the sensitization memory for a long time in the future.
Identify the cells which release the antibodies.
Macrophages coat bacteria to facilitate their subsequent phagocytosis. This process is known as ____________.
Which cells deliver co-stimulatory signals for helper T-cells?
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?
