Immunology Quiz #7: Function of Immune Cells

1. A 3-year-old boy is brought to the pediatrician by his parents due to recurrent bacterial infections. Laboratory tests show a deficiency in a cell type that is capable of producing large quantities of antibodies. Which of the following immune cells is most likely deficient in this patient? 

Question 1 of 5

2. A 25-year-old female patient presents with symptoms of an autoimmune disorder. Further investigation reveals that her immune system is attacking her own tissues due to a failure in self-tolerance. Which of the following immune cells is most likely involved in maintaining tolerance to self-antigens? 

Question 2 of 5

3. During an infection, a type of immune cell is responsible for directly killing virally infected cells. This cell type recognizes changes in MHC class I molecules on the surface of infected cells. Which of the following immune cells performs this function? 

Question 3 of 5

4. A researcher is studying a cell type known for its ability to present antigens and activate T cells, initiating an adaptive immune response. This cell type is also capable of migrating to lymph nodes after encountering pathogens. Which of the following immune cells is the researcher studying? 

Question 4 of 5

5. In a patient with a parasitic infection, a specific type of white blood cell is found in increased numbers. This cell type is known for its role in combating parasites and is also involved in allergic responses. Which of the following immune cells is most likely increased in this patient? 

Question 5 of 5


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