T or F. The MHC II proteins appear on most cells of the body except for RBC's
F (MHC I)
T or F. The classical pathway of complement requires antibody binding to antigen
T
Which process is NOT enhanced by C5a?
A) inflammation
B) histamine release
C) increased capillary permeability
D) fibrin formation
E) WBC chemotaxis
D) fibrin formation
In response to _____, the hypothalamus raises the set point of the body's "thermostat" causing fever:
A) kininogen
B) histamine
C) heparin
D) pyrogens
E) unfairly hard quiz questions!
D) pyrogens
T or F. Interferon is a substance which viralley-infected cells release which destroys all viruses on contact.
F
Found in sweat, mucous and other secretions. Usually seen in the form of a dimer. Provides natural passive humoral immunity to nursing infants
A) IgA
B) IgM
C) IgG
D) IgD
E) IgE
A) IgA
Most common Ig class of both the primary and secondary immune responses. Can cross the placenta and provide natural passive humoral immunity to fetuses. Activates complement.
A) IgA
B) IgM
C) IgG
D) IgD
E) IgE
C) IgG
Causes a group of proteins circulating in the blood to form lesions lysing a foreign cell.
A) complement fixation/activation
B) neutralization
C) precipitation
D) agglutination
A) complement fixation/ activation
Clumps foreign antigens together to keep them out of mischief, without necessarily rendering them insoluble.
A) complement fixation/activation
B) neutralization
C) precipitation
D) agglutination
D) agglutination
Which of the following is not true about helper T-cells
A) they have CD4 receptors
B) they do not participate in direct cell killing
C) they can stimulate the proliferation of other T-cells and B-cells that have bound to their antigens
D) they can stimula
E) all of the above are true
A tissue transplant between different species is a(n)
A) autograft
B) isograft
C) allograft
D) xenograft
E) term one commonly hears in everyday conversations
D) xenograft