What are the different types of ribosomes?
The difference in the structure and function of different types of ribosomes is constantly exploring and changing, but there are currently two ways to classify. The first way is to classify them based on the type of cell inhabited by: Archaeal, eukaryotic or eubacterial. The organelles in these specific cell types differ in the ratio of composition, size and protein to ribonucleic acid (RNA). The second way in which ribosomes are classified includes whether they are tied to the membrane or remain free floating in the cell. The terms used to describe this classification are "tied to the membrane" and "free" or. Each type has a unique formula and the speed of sedimentation when the cell separates in the laboratory. Measured in the units of Shedberg, which express the speed at the sedimentation accumulates, bacterial ribosomes belong to 70 Studberg, while Archaeal and eukaryotic ribosomes belong to class 80 Sedberg. To further distinguish, each type also differs in size and protein ratio to RNA. For exampleAd eukaryotic type measures between 25 and 35 nanometers (nm) and has a 1: 1 protein ratio, while other types measure differently.
The structure of membrane and free ribosomes is identical; They only differ in the spatial distribution. However, there are specific actions that one type can do when it is in one or the other. Those who are bound to a rough endoplasmic reticulum (Rough ER) have a greater ability to produce proteins and enzymes that can easily be used by the primary plasma cell membrane. The newly produced protein chains can be directly inserted into the rough ER using ribosomes bound to the membrane, which will reduce the time and sources needed for transport. This type is also responsible for most proteins that are exported from the cellular interior.
Free type creates a number of specific necessary proteins, such as those that are needed for the production of hemoglobin, which type of membrane cannot.Free ribosomes are needed when the cell grows rapidly or reproduces as they can easily move and move. They often occur in small clusters in cytoplasm cells and in this case they can be called polyribosomes. Free ribosomes are found in abundance in cells that do not share a large amount of protein, because for this process is necessary close proximity to the harsh er.