Exam 2: Hostparasite Interaction

Pathogens can be transmitted through all the following routes, except

Healthy skin secretes these substances to help prevent colonization by transient and possibly pathogenic organisms.

This class of antibodies is usually found as a pentamer.

Changes in these host structures can result in lower virulence of a microorganism.

Organisms that participate in a biological relationship where both benefit from one another are called

Immunity to intracellular bacterial pathogens, such as Mycobacterium tuberculosis, is primarily cell mediated, through the activities of

This type of bacteria is able to live in the colon with little to no oxygen and is the predominant organism.

The effects of endotoxins consist of dramatic changes in all the following, except

Healthy people are colonized by many different bacteria in many different sites. These bacteria are referred to as

This is a leukocidin that is lethal to leukocytes and produced by staphylococci.

The ability of an organism to produce disease in an individual is called

Mechanisms used by the skin to prevent infection and protect the underlying tissue from invasion by potential pathogens include all the following, except

One of the most effective defenses bacteria have against phagocytosis is

Parasitism is

What mechanism allows strict anaerobes to grow in the cervices and areas between the teeth when plaque is present?

A laboratory professional is testing a new antimicrobial soap. The tech washes her forearm then does a culture of the skin. Which organisms should she most likely expect to find growing in the culture?

A subsequent exposure to the same antigen elicits a(n) _____, characterized by a rapid increase in IgG antibody associated with higher levels, a prolonged elevation, and a more gradual decline in antibody levels.

Dissemination of a pathogen is

The major constituents of the adaptive or specific immune response are