How Harper smooth er rough er?

Answer 1

The rough ER appears rough due to the presence of ribosomes on the membrane surface. Smooth and Rough ER also have different functions. The functions of RER are providing an internal structural skeleton to support the cell's shape, as storage of the synthesised materials and minerals, such as calcium in myocytes, forming an internal network through which materials can be transported; and providing a large surface area on which chemical reactions can occur.

The function of the endoplasmic reticulum is to transport chemicals between and within cells. It also provides a large surface area for the organization of chemical reactions and synthesis. Two patterns are found in the cell, the smooth endoplasmic reticulum and the rough endoplasmic reticulum. The smooth endoplasmic reticulum packages proteins for transport, synthesizes membrane phosolipids, and releases calcium. Other functions of the smooth endoplasmic reticulum include transformation of bile pigments, glycogenolysis (the breakdown of glycogen), and detoxification of many drugs and chemical agents. In striated muscles, which you use for lifting objects, the endoplasmic reticulum is involved in the conduction of contracting impulses from the surface membrane of the cell into the depths of the muscle cell filled with muscle filaments, which are the basis for muscle contraction.