Exam Practice Q

Question 1

Your friend develops bacterial bronchitis (an infection of the upper respiratory tract). Answer the following questions to describe her immune system will respond to the developing infection (12.5 marks).

Answer 1

N/A

Question 2

Name the parts of the immune system that will be involved in the response to the infection and give an example of one component of each (2 marks)

Answer 2

1. Innate immune system
   - Keratin in skin
2. Adaptive immune system
   - BCRs specific for bacterial antigens

Question 3

Describe two ways the ummune system might detect the pathogen in the respiratory epithelium (2 marks)

Answer 3

1. Toll-like receptors on macrophages recognizes pathogen-associated molecular patterns
2. Abs bound to B cells (BCRs) recognize free antigens

Question 4

Using a diagram, show how different parts of the immune system interact to produce a co-ordinated response to the infection (6 marks)

Answer 4

1. Humoral
2. Complement
3. Cell-mediated