(c)++Antibodies+&+antibody+production

(5) Distinguish between antigens & antibodies. //What is antigen short for?//   __//Antigen:// __ - An antigen is a molecule that is recognized by the organism as foreign. I will cause an immune response. - Any foreign substance, such as a virus, bacterium, or protein, that elicits an immune response by stimulating the production of antibodies (Originally the term came from **anti**body **gen**erator, hence antigen). __Antibody:__ - An antibody, also known as "immunoglobin", is a soluble protein produced by a plasma cell. It is produced by the immune system as a response to the presence of antigen. An antibody will recognise an antigen and neutralise it. (6) Explain antibody production. //The details and names of each cell are not needed except for 5.4.5-AIDS (T-helper cells). Videos may help here//  //Animals produce antibodies (a.k.a immunoglobins) in response to proteins or other molecules (called antigen)//
 * __(c) Antibodies & antibody production __**
 * //These are recognized as foreign by the Lymphocytes in the immune system//
 * //These Lymphocytes are different and recognize different kinds of pathogen and produce different antibodies to wrok against that antigen//
 * //Lymphocyte creates antibody by dividing many times to form a clone//
 * //Then there are a lot of lymphocytes present to create the specific antibodies//
 * //Then antibody secreted in to plasma by the lymphocytes to attach to the antigens.//

//The intensity of the response is determined by://
 * //Size of antigen molecule//
 * //Chemical characteristics of antigen molecule//
 * //How different from animal's own proteins//

//Video to Help// [|//http://www.youtube.com/watch?v=KpNFAEbLcvk//]