Advertisements
Advertisements
प्रश्न
The following is well-known abbreviation, which have been used in this chapter. Expand to its full form:
CMI
उत्तर
Cell Mediated Immunity
संबंधित प्रश्न
Differentiate between Innate and acquired immunity.
What are the cells involved innate immune system?
Which type of resistance against pathogens does a human acquire through life?
Which blood cells secrete antibodies?
Which one engulfs pathogens rapidly?
The yellowish fluid "colostrum" secreted by the mammary glands of the mother during the initial days of lactation has abundant antibodies (lgA) to protect the infant. This type of immunity is called:
| When a microorganism invades a host, a definite sequence of events usually occurs leading to infection and disease, causing suffering to the host. This process is called pathogenesis. Once a microorganism overcomes the defence system of the host, development of the disease follows a certain sequence of events as shown in the graph. Study the graph given below for the sequence of events leading to the appearance of a disease and answer the questions that follow: |
(a) In which period, according to the graph there are maximum chances of a person transmitting a disease/infection and why? (1)
(b) Study the graph and write what is an incubation period. Name a sexually transmitted disease that can be easily transmitted during this period. Name the specific type of lymphocytes that are attacked by the pathogen of this disease. (2)
OR
(b) Draw a schematic labelled diagram of an antibody. (2)
(c) In which period, the number of immune cells forming antibodies will be the highest in a person suffering from pneumonia? Name the immune cells that produce antibodies. (1)
A patient was given an anti-retroviral drug by the doctor.
Which disease was the patient diagnosed with?
A patient was given an anti-retroviral drug by the doctor.
Which method was used to diagnose HIV disease?
Give an example of innate and acquired immunity.
