Unit 12 Practice Quiz
Your LAST Name:
1. The specific type of acquired immunity that a fetus obtains from maternal antibodies that cross the placenta is called:
artificially acquired active immunity
naturally acquired active immunity
artificially acquired passive immunity
naturally acquired passive immunity
artificially acquired natural immunity
2. Which of the following substances is NOT typically perceived as an antigen:
3. The specific foreign substances that an individual's immune system has the ability to recognize and resist is determined by:
the total number of self-antigens at a given time
the total number of lymphocytes present at a given time
the total number of macrophages at a given time
individual genetic makeup
individual exposure to the specific foreign substance
4.Regardless of whether it matures into a B cell or a T cell, a lymphocyte that is capable of responding to a specific antigen by binding to it is said to be:
5. The migration of phagocytes and white blood cells to an inflamed area along a chemical gradient is called:
6. Which one of the following is NOT one of the nonspecific body defenses:
the inflammatory response
natural killer cells
7. Tissues invaded by viruses, which attempt to replicate themselves by taking over cellular machinery, secrete small proteins called _?_ to protect nearby cells and hinder further multiplication of the viruses.
8. Cells that help to regulate the immune response are
helper T cells.
9. Unnecessary immune responses to haptens are
common in the elderly.
characteristics of HIV infection.
characteristics of AIDS.
10. Cytotoxic T cells destroy their target cells by releasing substances that alter
all of the above
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