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.
Making the world better, one answer at a time. The carbohydrate chains on membrane proteins serve as recognition markers; they aid in cell-to-cell recognition.t is often in the form of oligosaccharides (3- 10 sugar molecules) . it is attached to integral â¦ or peripheral proteins or to lipids forming the cell membrane. it is acting as cell marker, helps in cell-cell interaction, guiding the hormones to its receptor.