The processing requirements include successful completion of: 1  The application process, which includes a background and polygraph examination, a medical examination, a physical fitness evaluation, and a written examination; 2  24-26 weeks of intensive Academy training.
The cell membrane, being exposed to the outside environment, is an important site of cell-cell communication. As such, a large variety of protein receptors and identification proteins, such as antigens, are present on the surface of the membrane.
Explain the role of the major histocompatibility complex to T cell receptor binding. MHC molecules bind with a fragment of protein antigen within the cell and bring it to the cell surgace allowing a nearby T cell to detect the antigen and bind to it.