Polysaccharides on the surface of infecting microorganisms can also activate complement directly in the absence of antibody via the alternative pathway None of these antigen via the alternative pathway antibody via metabolic pathway TRUE ANSWER : ? YOUR ANSWER : ?
If a person is vaccinated against a disease sometime in the past, which of the following is currently in your body? The disease organism itself and antigens for the disease organism A very high level of antibodies against the disease antigens Memory B lymphocytes for the antigen of this disease organism All of these TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following immune cells would have an especially low count in a patient with advanced AIDS? Killer T lymphocytes B lymphocytes Helper T lymphocyte None of these TRUE ANSWER : ? YOUR ANSWER : ?
What are the solutions prepared from weakened or dead microorganisms, viruses, or toxins that provide some immunity from diseases? Drugs Histamines Vaccines Antibiotics TRUE ANSWER : ? YOUR ANSWER : ?
Immunological memory is due to short lived helper T cells that signal macrophage to divide long lived B cells that secrete a specific antibody short lived macrophage that can recognize specific pathogens long lived B cells that secrete a specific antigen TRUE ANSWER : ? YOUR ANSWER : ?
Which of the following is in the lymph nodes of a person battling a cold virus? Lymph ducts that enter and exit the nodes and Lymph fluid All of these Trapped viruses that have been roaming the body Huge numbers of white blood cells TRUE ANSWER : ? YOUR ANSWER : ?
Plasma cells produce thousands of __________ that are released into the bloodstream antibodies antigens helper T cells virus fragments TRUE ANSWER : ? YOUR ANSWER : ?
To detect a humoral immune response to influenza virus, it is possible to measure plasma cytokine levels serum antibody titer dividing T cells in the draining lymph nodes cytotoxicity of virus-infected cells in tissue culture TRUE ANSWER : ? YOUR ANSWER : ?
Antibodies bound to an invading microorganism activate the complement system via Entner-Doudoroff pathway metabolic pathway Embden Meyerhof pathway classical pathway TRUE ANSWER : ? YOUR ANSWER : ?
Immunogenicity depends on the ability of the native antigen to be presented by MHC is not a property of antibodies is usually a property of self antigens such as eye tissue is not a property of haptens TRUE ANSWER : ? YOUR ANSWER : ?