Antibodies (1 Viewer)
- Thread starter nesstar
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bluesky100
Carly :-)
HTH:
Antibodies are produced by a process called clonal selection:
- Specific Th cell aissists appropriate B cell to recognise antigen at surface of macrophage.
- B cells reproduce by mitosis forming a clone of identical B cells
- some become plasma cells that produce antibodies.
- some become memory cells.
Antibodies:
-are proteins produced by immune system in response to particular antigen
- each has a shape, in part complementary to the antigen that caused its production
- antibodies are also called immunoglobulins (Ig);
- IgG - most abundant, cross placenta, in milk.
- IgA - in saliva, tears and milk.
- IgM - active against some viruses and bacteria (as are IgG and IgA)
- IgE - involved in allergy reactions.
Info from VCE study pack, Biology, Unit 3: Leslie R., Martin M., Kinnear J.
Antibodies are produced by a process called clonal selection:
- Specific Th cell aissists appropriate B cell to recognise antigen at surface of macrophage.
- B cells reproduce by mitosis forming a clone of identical B cells
- some become plasma cells that produce antibodies.
- some become memory cells.
Antibodies:
-are proteins produced by immune system in response to particular antigen
- each has a shape, in part complementary to the antigen that caused its production
- antibodies are also called immunoglobulins (Ig);
- IgG - most abundant, cross placenta, in milk.
- IgA - in saliva, tears and milk.
- IgM - active against some viruses and bacteria (as are IgG and IgA)
- IgE - involved in allergy reactions.
Info from VCE study pack, Biology, Unit 3: Leslie R., Martin M., Kinnear J.
yeah they are just like markers. they are released (from B lymphocytes) and then they go and mark the bad cells for destruction.
there are heaps of types of B lymphocytes and they each carry specific antibodies that recognise specific antigens (bad cells). so when there is an infection only the B lymphocytes that are needed for the infection divide, not all of them.
there are heaps of types of B lymphocytes and they each carry specific antibodies that recognise specific antigens (bad cells). so when there is an infection only the B lymphocytes that are needed for the infection divide, not all of them.
Last edited:
thanks so much
another question:
What processes occur in order for those specific B cells to produce their specific antibodies?
I was discussing this with a friend and we got a bit confused. I know that the T helper cells are the ones that activate the B lymphocytes, but where do those T cells get their information from?
another question:
What processes occur in order for those specific B cells to produce their specific antibodies?
I was discussing this with a friend and we got a bit confused. I know that the T helper cells are the ones that activate the B lymphocytes, but where do those T cells get their information from?
i believe:nesstar said:
helper t cell come in contact with antigen, it becomes a antigen presenting cell, and at the same time releases a chemical, called interleukin2... up on contact of a antigen presenting cell or interleukin2, the b cells will mature and spcialise into either plasma cells (producing antibodies) or memory cells, (which remembers the correct antibody produced...
lukebennett
Happy Member
the antibody when in contact with the antigen, locks on to form an antigen-antibody complex which destroys the antigen by breaking it apart
