Antibody Development and Short Term Immunity Prep Exam Questions And Already Passed Answers.
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Course
Boc serology immunology
Institution
Boc Serology Immunology
If a sheep is injected with the box jellyfish venom on more than one occasion a higher yield of antivenom is obtained. Explain why. - Answer T-memory cells and B-memory cells are stimulated as they recognise the antigen
Inducing a secondary immune response
With complementary antivenom produced...
Antibody Development and Short Term
Immunity Prep Exam Questions And
Already Passed Answers.
If a sheep is injected with the box jellyfish venom on more than one occasion a higher yield of antivenom
is obtained. Explain why. - Answer T-memory cells and B-memory cells are stimulated as they recognise
the antigen
Inducing a secondary immune response
With complementary antivenom produced much faster in greater numbers
Why does injecting antivenin not give a person lasting protection? - Answer As it is passive immunity
Therefore no memory cells are produced
Once the antivenom is broken down, no further antivenom is produced by the individual
Suggest one problem in injecting antivenom produced by injecting sheep with venom and extracting
antibodies from the sheep's blood? - Answer Antigens and disease from the sheep may be transferred
(also may cause allergy
may cause immune response)
What is an antibody? - Answer An antibody is protein, with a specific, complementary shape to an
antigen.
Describe how antibodies are produced following a viral infection? - Answer 1. The virus contains
antigens
2. The antigens proteins stimulate phagocytes to engulf and digest the pathogen
3. Macrophage phagocytes combine the antigen with MHC and display the antigen on the cell-surface
4. This stimulates T-helper cells to bind causing the macrophage to produce interleukin-1, which
stimulates the T-helper cell to produce interleukin-2 which stimulates the T-helper cell to divide by
mitosis forming clones which produce cytokines
5. The cytokines stimulate B-lymphocytes that are specific to the antigen to replicate by mitosis
producing clones, known as clonal selection.
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