Immunity
Immunity: Overview
This Topic covers sub-topics such as Asthma, Allergies, Immunity, Antigen, Antibody, Anaphylactic Shock, Immunoglobulin-G, Innate Immunity, Immunoglobulin-A, Immunoglobulin-M, Complement System, Immunoglobulin-E, Autoimmunity and, Acquired Immunity
Important Questions on Immunity
A flower containing anther and filament would be:
The two special types of lymphoid organs in humans are:
The type of immunity that is present at the time of birth in humans is:
Consider the following four statements (i-iv) regarding kidney transplant and select the two correct ones out of these.
(i) Even if a kidney transplant is proper the recipient may need to take immune suppressants for a long time.
(ii) The cell mediated immune response is responsible for the graft rejection.
(iii) The B lymphocytes are responsible for rejection of the graft.
(iv) The acceptance or rejection of a kidney transplant depends on specific interferons.
The two correct statements are:
Lysozyme is present in perspiration, saliva and tears. It destroys
Damage to thymus in a child may lead to:
Which type of immunity is responsible for rejection of graft?
Which form of immunisation does not generate a memory response? Give a reason to support your answer
Describe the form/s of immunity that is provided when an individual is vaccinated/immunised? Use an appropriate example/s to justify your answer.
In the late 18th century, smallpox was a widely spreading disease causing the death of several affected individuals in Britain. Edward Jenner, who pioneered the concept of vaccination, inoculated matter from the cowpox lesions of a dairymaid into an 8year-old boy. Post-inoculation, the boy developed a mild fever, loss of appetite and discomfort but was better after a few days. Next, he was inoculated with matter from a smallpox lesion and he did not develop any disease. What form of immunity, now known, did Edward Jenner provide the boy with? Give a reason to support your answer.
Given below are two statements:
Statement I:
An autoimmune disorder is a condition where body's defense mechanism recognises its own cells as foreign bodies.
Statement II:
Rheumatoid arthritis is a condition where body does not attack self cells. In the light of above statements, choose the most appropriate answer from the options given below.:
Which of the following disease is an autoimmune disorder?
Which of the following are reason(s) for rheumatoid arthritis ? Choose the correct option.
(i) Lympocytes become more active
(ii) Body attacks self cells
(iii) More antibodies are produced in the body
(iv) The ability to differentiate pathogens or foreign molecules from self cells is lost
The type of antibodies produced during the allergic reaction
Study the following statements regarding immune system and choose correct statements.
I) class - I molecules present on all nucleated cells.
II) class - II molecules found on the surface of pathogens.
III) - Cells are involved in cell mediated immunity.
IV) Cytotoxic T- Lymphocytes release enzymes called perforins.
Colostrum contains the following type of antibodies
Yellowish fluid 'colostrum' secreted by mother during the initial days of lactation, is an example of:
