Cell biology questions - Assignment Example

Therefore it can be concluded with lots of confidence that absorption of an intensive color during this process is the primary reason as to why molecule mobility is reduced between membranes. This aspect is used in a number of ways one of them being is to characterize mobility of proteins and lipids in the body whenever need may be or examination of cytoskeletal dynamics. Proteins take several steps to cross from endoplasmic reticulum, where they are produced and processed in readiness to transport to plasma membrane.

You find that proteins are synthesized by the Golgi processes in the endoplasmic reticulum before they are sent to any cell. Studies have shown that prior to the proteins going through the endoplasmic reticulum they are transformed from their protein form into amino acids by ribosomes. As the amino acids enter the Golgi for further processing and refinement, they do so while they are facing the endoplasmic reticulum (cis side) and when they leave, they also do so as they face the plasma membrane (i.e. trans side).

This technical move process is of great importance because as the proteins make their progress from the cis side to the trans side, they become modified and are packaged in such a way that makes them appropriate for transportation to any cell located anywhere in the body. Thus the protein must pass through the cisternae stack which varies in number and shape and it is known to be organized differently in different cell types. Protein in question here has several forms. First it can be transmembrane protein.

This kind is transported by means of embedding itself in the endoplasmic reticulum membrane. On another means, it can be water – soluble proteins which easily get through the membrane o the lumena. For a while now, differential centrifugation has continued to be of great help in separating rough endoplasmic from the smooth endoplasimic recticulum. It is a procedure which microbiologist and