Sheenin

//Once in, find your page by looking for your name in either 7A_Immunity or 7B_Immunity. In your page:// //1) Write 7 most important or meaningful science words that help you to understand immunology. Give a simple definition to each word.// //2) In 30 minutes, showcase/demonstrate your best or deepest understanding of immunology, with explanation; begin with a question or title (e.g. how// //works?)//

//You may use cacoo, bubbl.us or audio recording. SAVE periodically.// Antibody: Antibodies are a form of protein complexes.They bind themselves with antigens, to signal the other cells in our body to come and remove the antigens. The part of the antigen that is binded to an antibody is called the epitope. There are two types of antibodies, membrane-bound and free antibodies. Membrane-bound antibodies first attaches themselves to the membrane of another cell, while free antibodies float freely in the fluids of our body.
 * Terminologies:**

Antigen: Antigen is a scientific name for pathogens. They are the cells that do harm to our body. Some examples are, virus, bacteria and microbes. Phagocytes: Phagocytes are simple cells that participate in the non-specific immune system. They patrol our immune system, and the antibodies attached to its membrane will bind with any antigen that they spot. Then, the antigen will be engulfed, and broken down in simpler protein molecules, namely amino acids and peptide chains. These simple protein molecules will be attached to a Major Histocompatibility Complex Type 2, which is also another protein complex. Once bonded, they will be presented onto the surface of the membrane of the cell, waiting to be removed by other cells that take part in the specific immune system. Lymphocytes: Lymphocytes are a type of white blood cells. They are the main cell that participate in the specific immune system. Types of lymphocytes includes B lymphocytes which participate in humoral response, and T lymphocytes which participate in the cell-mediated response. Leukocytes: Leukocytes are white blood cells. It is a scientific term for white blood cells. Under lymphocytes, there are many more sub-categories of cells, which each has a different role in fighting of illness. Humoral response: The cells that participate in humoral response is B lymphocytes. In this response, the cells only responds to the antigens that is floating around in the fluids of our body, such as the blood stream. They do not respond to infiltrated or cancerous cells Cell-mediated response; The cells that participate int he celll-mediated response is the T lymphocytes, which include the Helper T Cells and Cytotoxic T cells. Helper T cells do not do actual damage to the antigens or cancerous cells, but it is a signal to the other cells that do damage, that indicate to other cells that there is an unwanted invader, and needs to be removed. This will also tell them to keep proliferating to increase the number of their type of cells in our immune system. Cytotoxic T cells in the opposite of B lymphocytes. Cytotoxic T cells respond to infiltrated cells, cancerous cells, by attacking to weaken and kill the unwanted cells.