Exam 25: Immune Mechanisms

When is a bacterial cell more likely to be phagocytized?

Effective immunogens generally have a molecular weight of ________ or greater.

Proteins derived from infecting viruses are taken up and digested in the cytoplasm in a structure called the

In the adaptive immune response,effective immunity cannot be detected for several days after the first contact with the pathogen.

Extremely high or low doses of an immunogen may suppress a specific immune response by stimulating the development of

Why are the chances of an immune response in a patient given between 10µg and 1g of an immunogen (drug)higher than a patient given higher than 1g or lower than 10µg of the same drug?

Dead phagocytes make up much of the material of pus.

Which of the following enzymes are NOT secreted by TH1 to activate macrophages?

How is immune memory beneficial to a host organism?

Inflammation is the usual outcome of an adaptive immune response but not an innate immune response.

Which of the following is NOT an immunoglobin?

Antigen exposure is necessary to

Streptococcus pyogenes produces proteins called ________,which alter(s)the surface of the pathogen and inhibits phagocytosis.

The part of the antigen recognized by the antibody or TCR is called the

Haptens CANNOT bind to or induce an immune response but CAN bind to antibodies.

A(n)________ is a group of sequentially interacting proteins important in innate and adaptive immunity.

A serum containing antigen-specific antibodies is called an

HLAs are responsible for immune-mediated organ transplant rejection.

Which of the following does NOT influence immunogenicity?

Briefly describe the effect of deposition of antibody or complement on the surface of a pathogen or antigen in relation to opsonization.