Exam 6: Adaptive Immunity

After exposure to a specific antigen, B cells differentiate into:

The primary role of secretory IgA is to prevent infections in:

Which of the following characteristics increases an antigen's ability to be immunogenic?

A 20-year-old female is applying for nursing school and is required to be tested for immunity against several illnesses. Testing that looks at which of the following would be the best to determine immunity?

A 10-year-old male is stung by a bee while playing in the yard. He experiences a severe allergic reaction and has to go to the ER. This reaction is the result of:

Which portion of the antibody is responsible for activating the inflammatory systems?

Histocompatibility antigens help the immune system:

A macrophage was isolated and analyzed for major histocompatibility complex. Which of the following would be expected?

A young male patient becomes severely ill following lunch at the local hamburger stand. He experiences fever, vomiting, and diarrhea. Testing at the restaurant reveals that he ate food contaminated by Streptococcus pyogenes. Which of the following would be expected to accompany his illness?

The predominant antibody of a typical primary immune response is:

A cell that is produced in the thymus and interacts with MHC II molecules would have which of the following surface proteins?

Which of the following is not a secondary lymph organ?

A 23-year-old pregnant female visits her physician for her final prenatal checkup. The physician determines that the fetus has developed an infection in utero. Which of the following would be increased in the fetus at birth?

A 5-month-old child is admitted to the hospital with recurring respiratory infections. A possible cause of this condition is:

Which of the following characteristics is shared by both the secretory and systemic immune systems?

Which of the following cells is responsible for presenting the antigen to the immune cells during clonal selection?

A patient is diagnosed with cancer. Which of the following cells would be produced in the greatest number?

At a 12-month well-baby visit, the mother reports that the child has never been ill. She proudly reports that the baby was breastfed since birth. The nurse tells her that breastfeeding is beneficial because the dominant antibody in breast milk acts by functioning as an antigen receptor:

An experiment is carried out to characterize newly discovered immunoglobulins. Specificity of the immunoglobulin could be determined by studying the:

An experiment is designed to determine specific cell types involved in cell-mediated immune response. The experimenter is interested in finding cells that attack cells that have specific antigens. Which cells should be isolated?