Exam 33: Adaptive Immunity

Match each antibody class with its description, function, or location. -Predominant class of antibody produced in the secondary response to an antigen

Antibody molecules can have as many as eight antigen-binding sites.

Explain the terms natural immunity, artificial immunity, active immunity, and passive immunity. Give an example of natural passive immunity.

Which of the following is not caused by complement protein activity?

Match each term with its corresponding definition. -Lymphocyte that attacks pathogens directly

A mother passing antibodies to the fetus is an example of natural passive immunity.

When a patient starts to have rejection problems with a transplanted organ, the problems are usually caused by:

To function independently in the immune process, both B cells and T cells must become thymocytes during development.

The antibody produced after initial contact with an antigen is:

An antigen consists of two heavy and two light polypeptide chains.

Adaptive immunity requires two signals: antigen and chemical.

The surface membranes of cancer cells are thought to have abnormal antigens.

Which of the following can activate, or turn on, an inactive B cell?

B cells are named after a structure in birds.

Because of the random nature of antibody protein synthesis, it is possible to have an "anti-self" B cell.

Antibody molecules may agglutinate antigens that are on the surface of microorganisms. Explain how agglutination can help promote the destruction of microorganisms such as bacteria.

The major class of antibody present in the mucous membranes of the body is:

All of the cells in a clone of plasma cells produce identical antibodies.

Describe the structure of an antibody molecule.

Name and explain the role of regulating cells in the immune system.