Bacterium Capsule Research Proposal Example | Topics and Well Written Essays - 500 words

Bacterium Capsule - Research Proposal Example It is a layer that lies outside the cell wall of bacteria, it is well organized and it is not easily washed off. This makes it diffuse through the tracheal system. Its slime layer diffuses into the surrounding medium as a loosen-demarcated secretion. The capsule usually consists of polysaccharides and is water soluble thus dissolves in the moisturize tracheae through the spiracles. Thus they are difficult to stain using standard stains as they do not adhere to the capsule (Chapman, 2004). Since the capsule remains pale and colorless, it is difficult to be detected and appears as a ring around the cell. The tracheae are water filled as they consist of a permeable membrane of the surrounding tissues which make the capsule soluble since it is water soluble. The water level, however, retracts due to the increase in the concentration of lactic acid found in the muscle cells during the respiration system. The capsule contains external chemical sensors which therefore detects the concentration of lactic acid, lowering the water potential in the system which is then drawn back into the cells through osmosis process while the capsule gets closer to the muscle cells. While the diffusion pathway is reduced as a result, the capsule can then be transferred more easily through the tracheal. The bacterium capsule is typically stimulated for easy movement throughout the system. The neurosecretory cells made in the cell body consist of the prothoracic gland which acts as circulatory s ystem storage gland and hormonal control of insect molting (Ulrich, 2009).