Match the type of immunity listed in column I with the examples listed in column II. Choose the answer that gives the correct combination of matches.
Column I - Type of Immunity
Column II - Example
i. Natural active
p. Immunity developed by heredity
ii. Artificial passive
q. Transfer from mother to foetus via the placenta
iii. Artificial active
r. Injection of antiserum
iv. Natural passive
s. Fighting infections naturally
t. Immunity induced by vaccination
Match the type of immunity listed in column I with the examples listed in column II. Choose the answer that gives the correct combination of matches.
| Column I - Type of Immunity | Column II - Example |
| i. Natural active | p. Immunity developed by heredity |
| ii. Artificial passive | q. Transfer from mother to foetus via the placenta |
| iii. Artificial active | r. Injection of antiserum |
| iv. Natural passive | s. Fighting infections naturally |
| t. Immunity induced by vaccination |
The correct option is A i- s, ii – r, iii – t, iv – q
Natural active immunity - It is the immunity produced when active microorganisms(pathogens) from nature enter the body. The immune system is stimulated and produces antibodies.
Artificial passive immunity - A person suffers from severe disease when his immune system isn’t producing antibodies enough for that particular disease. Hence external antibodies are given in the form of anti-serum. Anti-serum contains antibodies against a particular disease.
Artificial active immunity - It is produced when microorganisms inactivated by heat/ radiation enter the body (vaccination). This artificial preparation of inactive/dead microorganisms is called a vaccine.
Natural Passive Immunity - Newborn infants don’t have a well-developed immune system. Hence antibodies are not produced by their body. They are protected by maternal antibodies. Maternal antibodies reach children in the following way:
Maternal IgG reach the placenta and enter the child's circulation through the umbilical cord and maternal IgA reaches the child through colostrum/ first breast milk.
Natural active immunity - It is the immunity produced when active microorganisms(pathogens) from nature enter the body. The immune system is stimulated and produces antibodies.
Artificial passive immunity - A person suffers from severe disease when his immune system isn’t producing antibodies enough for that particular disease. Hence external antibodies are given in the form of anti-serum. Anti-serum contains antibodies against a particular disease.
Artificial active immunity - It is produced when microorganisms inactivated by heat/ radiation enter the body (vaccination). This artificial preparation of inactive/dead microorganisms is called a vaccine.
Natural Passive Immunity - Newborn infants don’t have a well-developed immune system. Hence antibodies are not produced by their body. They are protected by maternal antibodies. Maternal antibodies reach children in the following way:
Maternal IgG reach the placenta and enter the child's circulation through the umbilical cord and maternal IgA reaches the child through colostrum/ first breast milk.
