Complete Solutions
alpha interferon Correct Answers -produced by WBC
-stimulate NK cells
alternative pathway of complement activation Correct Answers
1. C3 combines with factors B, D, and P on the surface of a
microbe
2. This causes C3 to split into fragments C3a and C3b
3. C3a activates inflammatory response
4. C3b protein binds to the bacterial cell wall
Antibody structure Correct Answers two heavy chains disulfide
bonded to two light chains
B cells Correct Answers Cells manufactured in the bone
marrow that create antibodies for isolating and destroying
invading bacteria and viruses.
beta interferons Correct Answers secreted by fibroblasts, slow
inflammation
CD4 cells Correct Answers referring to human white blood
cells, which contain the cell surface recognition protein CD4
(Helper T cells)
CD8 T cells Correct Answers The subset of T cells that express
the CD8 co-receptor and recognize peptide antigens presented
by MHC class I molecules. (cytotoxic/suppressor t cell)
, classical pathway of complement activation Correct Answers 1)
antibodies bind to bacterial cell wall
2) attachment of C1
3) attached C1 protein acts as an enzyme, catalyzing a series of
reactions involving other complement proteins that split C3 into
C3a and C3b. C3a diffuses away and activates an inflammatory
response
4) C3b binds to bacterial cell wall and advances phagocytosis
complement proteins Correct Answers Complement proteins
are proteins that lyse the cell wall of an antigen. They are part of
the nonspecific defense mechanisms of the immune system.
components of lymphatic system Correct Answers lymph,
lymphatic vessels, lymphatic tissue, lymphatic organs
Cytokines Correct Answers proteins secreted by cytotoxic T
cells to aid in antigen destruction
Effects of Complement Activation Correct Answers stimulation
inflammaton
attraction of phagocytes
enhancement of phagocytosis with opsonization
Effects of inflamation Correct Answers 1) increase blood flow
2) activation of phagocytes
3) increased capillary permeability
4) complement activated
5) clotting reaction walls off region
6) increase regional temperature
7) activation of specific defenses