This checkpoint tests Block B: the second line of defence, the adaptive immune response, vaccination and immunity, and Australia's immunisation story.
This checkpoint assesses your understanding of Block B.
Infection and defence review: pathogens, transmission, first and second line of defence.
Second line of defence: inflammation, phagocytes, fever, complement proteins.
The immune response: B cells, T cells, antibodies, and memory cells.
Vaccination and immunity: active vs passive immunity; how vaccines work.
Australia's immunisation story: National Immunisation Program and immunisation data.
1. Which cell type engulfs and destroys pathogens during the second line of defence?
2. Which cell of the adaptive immune response produces antibodies?
3. A vaccine works by:
4. Herd immunity protects vulnerable people who cannot be vaccinated because:
5. Which of the following is an example of passive immunity?
6. In Australia, the National Immunisation Program provides vaccines for:
7. Fever is part of the second line of defence because a raised body temperature:
8. Why does a person who has recovered from a disease often not get sick from the same pathogen again?
9. A child receives a booster shot for whooping cough. What is the purpose of a booster?
10. A new infectious disease emerges. Scientists develop a vaccine within 12 months. Explain why the immune system's ability to form memory cells makes vaccination effective, and why some people still get infected after vaccination.
11. Describe the roles of B cells and T cells in the adaptive immune response. Explain how they work together to protect against pathogens. 4 MARKS
12. Explain how vaccination creates active immunity. Use the terms antigen, antibody, memory cell, and primary/secondary response in your answer. 4 MARKS
13. A student claims that because most people in their community are vaccinated, they do not need to be vaccinated themselves. Evaluate this claim using the concept of herd immunity. 4 MARKS
Tick when you have finished all questions and reviewed your answers.