Active and Passive Immunity - Unsolved Practice Set
Chapter: Human Health and Disease | Topic: Active and Passive Immunity
ACTIVE AND PASSIVE IMMUNITY - UNSOLVED PRACTICE SET
Topic: Active and Passive Immunity
Multiple Choice Questions
Q1. Active immunity refers to immunity in which:
- Ready-made antibodies are directly given to an individual
- The individual's own immune system produces antibodies in response to an antigen
- No antibodies are involved at all
- Immunity is inherited genetically
Q2. Which of the following is a natural example of passive immunity?
- Getting infected with a disease and recovering
- Receiving a vaccine
- Antibodies passed from mother to infant through colostrum
- Producing antibodies after a booster dose
Q3. Vaccination is an example of:
- Active immunity
- Passive immunity
- Innate immunity only
- No immunity at all
Q4. Passive immunity is generally characterised by:
- Slow onset but long-lasting protection
- Immediate but relatively short-lived protection
- No protection at all
- Protection only against bacterial infections
Q5. Injecting a person with ready-made antibodies (antiserum) against snake venom is an example of:
- Active immunity
- Passive immunity
- Innate immunity
- Autoimmunity
Short Answer Questions
Q6. Differentiate between active and passive immunity.
Q7. Give one example each of naturally acquired active immunity and naturally acquired passive immunity.
Q8. Why does passive immunity provide protection more quickly than active immunity?
Q9. Why is passive immunity generally considered short-lived compared to active immunity?
Long Answer Questions
Q10. Explain active immunity, describing both its natural and artificial (vaccination-based) forms, along with their advantages.
Q11. Explain passive immunity, describing both its natural (maternal) and artificial (antiserum-based) forms, along with their advantages and limitations.
APPLICATION / ANALYSIS
Q12. A newborn baby receives important antibodies from its mother through breast milk, particularly the first milk (colostrum), providing protection during the first few months of life before its own immune system matures. Identify the type of immunity this represents, and explain why this protection is temporary.
Q13. A person bitten by a venomous snake is given an injection of ready-made antibodies against the venom, rather than being vaccinated and asked to wait for their body to produce antibodies. Explain, using your understanding of active versus passive immunity, why this approach is necessary in such an emergency situation.