What type of cell produces antibodies? How do they help attack or immobilize pathogens?

Answer 1

ahem

Actually it is the B-cells that produce antibodies. (B for Bursa of Fabricius, an organ found in birds but not in humans, but we can think B for bone marrow).

B cells are a class of lymphocytes - a type of white blood cell. They have the ability to make special proteins called antibodies (or immunoglobulins "Ig's").

The antibodies have one end that is able to bind to the pathogen at a site called an "antigen" - the other end is able to bind to other white cells and trigger a response... phagocytosis or immunomodulator release ...

Read about it here in wikipedia

You also asked about memory cells in your other question - they are a type of B cell.

Answer 2

B cells produce antibodies and are the only cells in the body to do so...T cells do NOT produce antibodies, although in an advanced immune response, T helper cells can enhance antibody production by B cells in a complex network of biochemical signals.

Antibodies are most effective against extracellular pathogens, such as most bacteria. They circulate throughout the bloodstream and depend on physical contact with the pathogen's surface antigens in order to do any real damage. During this physical contact, bacterial cells (or other extracellular pathogen) becomes immobilized until cells such as macrophages and neutrophils can migrate to the site and digest the pathogen.

Answer 3

White T cells- they are the bodies natural defense system, They basically isolate pathgens and take them apart peice by peice. I'm not sure as to the details,but those are the basics, Hope that helps

Answer 4

white blood cells