
An example of active immunity is
Antibodies in mother's milk to protect infant

Important Questions on Human Health and Disease



Study the following:
Statement : cells are involved in humoral and cell mediated immunity.
Statement : Natural killer cells are a type of lymphocytes.
The correct option among the following is

(a) | Tuberculosis | (i) | Harmless virus |
(b) | Whooping cough | (ii) | Inactivated toxin |
(c) | Diphtheria | (iii) | Killed bacteria |
(d) | Polio | (iv) | Harmless bacteria |






Read the following statements
I) lymphocytes are involved only in cell mediated immunity.
II) Thymus gland of mammals is a secondary lymphoid organ.
III) The part of antibody that recognises and binds to an antigen is called epitope.
IV) Interleukins are primarily involved in differentiation of the cells of immune system.
Among the above, the incorrect statements are




Match the following:
Set-I | Set-II | ||
(A) | Vaccination | (I) | Artificial passive immunity |
(B) | Granzyme release | (II) | Cell-mediated immunity |
(C) | Lysozyme mediated | (III) | Artificial active immunity |
(D) | Antivenin | (IV) | Innate immunity |
The correct match is

Match the components of immune system in Column-I with their respective function/role in
Column-Il and select the correct option.
Column-I | Column-II | ||
a) | Perforin | i) | digest bacterial cell walls. |
b) | Interferons | ii) | stimulate proliferation of other T-lymphocytes |
c) | Lymphokines | iii) | produce holes in infected cells |
d) | Lysozymes | iv) | make surrounding cells resistant to viral infection |





