
Name the secondary lymphoid organ which is a reservoir of erythrocytes.

Important Questions on Human Health and Disease



Match the following about immune system
List I | List I | ||
A | Complement proteins | I | Stimulate phagocytosis |
B | Tc cells | II | Microglia in brain |
C | Cytokines | III | Inflammation |
D | Mononuclear phagocytes | IV | Membrane attack complex |
V | Cell mediated immunity |
The correct answer is

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

Statement (S): Natural killer cells form the body's most important cells of defence, and they destroy the infected cells or altered self cells in an antibody-independent manner.
Reason (R): The reaction time of NK cells is fast as they are always in an active form to identify and destroy even small cancer cells well before they form a tumor.
Which of the following is true?

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


Identify "1" and "2" in the following diagram.
Write in brief about production of vaccine.

Identify and write the names of given diagrams A, B, C and D.


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








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

