Exam 32: Defenses Against Disease

Killer T cells

Infected cells release interferon in order to protect other cells from infection.

What prevents pathogens from entering our bodies through the delicate tissues of the lungs?

A disease-causing agent is called a(n)____________________.

_____ on the surface of disease organisms help the vertebrate immune system recognize the specific invader.

The fetus of a lion receives antibodies that were produced by its mother while it was still in the womb. This is an example of

In the illustration below of the lymphatic system, the arrow is pointing to a kidney.

Active immunity results from injecting

The human immune system has a more effective response to an invader during a second exposure than during the first exposure.

The body responds to tissue damage by mounting an immediate and coordinated sequence of events called the

Which of the following statements correctly describes the immune response when the invading organism is a virus?

The antibodies released by activated B cells specifically target

HIV attacks B lymphocytes and increases cell-mediated immunity.

The ____________________ is a coordinated combination of specialized cells and molecules that give us the ability to resist specific pathogens.

____________________ proteins attach to antibodies bound to antigens on the surfaces of invading cells. This helps macrophages bind to these cells in preparation for phagocytosis.

While pruning your roses, you get scratched by a thorn. A few days later, you notice that the scratch is filled with yellowish pus. What is this pus?

An autoimmune disease would occur if

Which of the following both prevents blood loss and the invasion of pathogens in vertebrates?

The term clonal in clonal selection refers to the fact that

Allergies are often attributed to