A ball bearing is a type of rolling-element bearing that uses balls to maintain the separation between the bearing races. The purpose of a ball bearing is to reduce rotational friction and support radial and axial loads. It achieves this by using at least two races to contain the balls and transmit the loads through the balls.
1 The. 2  for a eukaryotic cell is the same kind of structure, and has the same function as the plasma membrane of a prokaryotic cell. ( 3 ER) is a system of membrane-enclosed channels which ramifies throughout the cytoplasm of the cell. 4  It comes in two types--smooth and rough. , which is quite different from the peptidoglycan of prokaryotic cell walls. 2  The primary function of the cell wall is support, and inconjunction with the central vacuole, to create turgor (stiffness) in plant structures like leaves. 3  Plant cells contain a specialized vacuole called the. .
Eukaryotic cells are those cells, which are complex and larger than the prokaryotic cells. The term eukaryote is derived from the Greek word- aâ¬Ã¢â¬ oeeukaryotea ÅeukaryoteÃ¢ meaning true or. Good nuclei this cell includes all life kingdoms. except monerahe prokaryotic cells do not have membrane bound cellular organelles. The cellular structure of the prokaryotes and eukaryotes differ in the presence of c ellular structures like the mitochondria and chloroplasts, cell wall and the structure of chromosomal DNA.