Antibodies. For an naive B cell it is generally IgM and IgD. An activated B cell will express IgA, IgE or IgG after it goes through isotype switching.
IgM
Nucleus. Cell is bound by the cell membrane, and the nucleus is bound by nuclear envelope, or nuclear membrane.
Prokaryotic Cell
Type A and B red blood cells differ in the antigens they express on the cell surface. The still carry out the same tasks (transportation). The antigens on the surface of these cells are what is recognised by the immune system - so that it knows the cell is part of the body and not foreign.
d - ligands.
It is called a vacuole. A vacuole is a membrane-bound compartment in cell cytoplasm.
The surface immunoglotulin that serves as the B-Cell antigen receptor (BCR) has two roles in B-cell activation. First, like the antigen receptor on T cells, it transmits signals directly to the cell's interior when it binds antigen. Second, the B-Cell antigen receptor delivers the antigen to intracellular sites where it is degraded and returned to the B-cell surface as peptides bound to MHC class II molecules.
Eukaryotic cells are a type of cell that has a membrane bound nucleus and membrane bound organelles. Prokaryotic cells are another type of cell, more primitive that it lacks a nuclear envelope yet not so primitive that it contains no membrane bound organelles!
Nucleus. Cell is bound by the cell membrane, and the nucleus is bound by nuclear envelope, or nuclear membrane.
A function whose upper bound would have attained its upper limit at a bound. For example, f(x) = x - a whose domain is a < x < b The upper bound is upper bound is b - a but, because x < b, the bound is never actually attained.
Eukaryotic cell
Prokaryotic Cell
Type A and B red blood cells differ in the antigens they express on the cell surface. The still carry out the same tasks (transportation). The antigens on the surface of these cells are what is recognised by the immune system - so that it knows the cell is part of the body and not foreign.
And many membrane bound organelles.Eukaryotic cell
All animal cells are eukaryote. A membrane bound nucleus and many membrane bound organelles.
The Burnet theory about antigen antibody reaction is a basic concept about how we make antibodies specific to a foreign substance which has the ability to induce an immune response (antigen). Each B cell displas one unique type of B cell receptor on their surface (which is basically a membrane bound antibody). Therefore many B cells, each expressing its own type of B cell receptor are needed to cover the inexhaustable number of antigens that are possible, in the hope that one type of B cell receptor will be able to recognise the shape of that antigen. If one B cell does recognise the antigen in question, then this B cell will become activated to make many clones of itself, which will obviously carry identical B cell recptors which fit the antigen. |Therefore the clonal selection theory by Burnet is about antibody antigen interactions which result in the 'best-fit' B cell receptor inducing a reaction to tell the B cell carrying the receptor to multiply and produce lots of identical antibodies which can then be secreted to bind to the antigen they are specific for.
The answer is B.
Same as your cell type. Eukaryote. Membrane bound nucleus and many membrane bound organelles.