Exam 43: The Immune System

Mutant fruit flies that make only one antimicrobial peptide were tested for survival after infection with Neurospora crassa fungi or with Micrococcus luteus bacteria. -The results shown in the graphs support the hypothesis that

Antihistamine treatment reduces

Antigens are

A patient who undergoes a high level of mast cell degranulation, dilation of blood vessels, and acute drop in blood pressure is likely suffering from

Infection by a bacterium that has elements on its surface that enhance its resistance to lysozyme will likely result in

Which statement best describes the difference in responses of effector B cells (plasma cells)and cytotoxic T cells?

Which of the following statements is not true?

Which of these is not part of insect immunity?

Which of the following would not help a virus avoid triggering an adaptive immune response?

Cave art by early humans recognized the existence of the major signs of inflammation. The most inclusive set of symptoms of inflammation that might appear in such early human art is

Use the following table to answer the questions below. -Study the table. The mother could exhibit an anti-Rh-factor reaction to the developing fetus in

Use the following information as background for the next few questions. Immunodeficiencies can be genetic in origin, and two examples are Bruton's agammaglobulinemia, an X-linked disorder, and DiGeorge syndrome, caused by a deletion from chromosome 22. Bruton's disorder results in underdeveloped B cells, whereas DiGeorge syndrome results in a missing or seriously underdeveloped thymus. -Select the description that likely indicates a child with Bruton's disease.

Normal immune responses can be described as polyclonal because

A nonfunctional CD4 protein on a helper T cell would result in the helper T cell being unable to

Use the following table to answer the questions below. -After a long and cold winter, Jim was excited to start exploring the woods behind his new home. His first adventure included exposure to poison ivy without any reaction. A month later, though, a second walk through the woods was not so great, since two days later Jim had a terrible rash that lasted for weeks. The fact that the rash took two days to develop indicates that this immune response was an example of

The transfusion of type A blood to a person who has type O blood would result in

B cells have antigen receptors that bind to antigens that are either freely dissolved or present on the surface of invading/foreign cells. T cells have antigen receptors that

After cutting your foot on piece of glass, you notice localized redness, swelling and heat. The immune cells responsible for these symptoms are

Yearly vaccination of humans for influenza viruses is necessary because

A key part of the humoral immune response is