Rough Endoplasmic Reticulum – Types and Structure

Rough Endoplasmic Reticulum

The rough endoplasmic reticulum (ER) is a network of interconnected membranous tubes and sacs that extends throughout the cytoplasm of a eukaryotic cell. It is studded with ribosomes, which are the sites of protein synthesis. The ER plays a important role in the transport and also in modification of proteins destined for secretion or for insertion into the plasma membrane.

Rough Endoplasmic Reticulum Definition and Function

• Rough endoplasmic reticulum (RER) is a type of endoplasmic reticulum that has a roughened surface. This surface covered in ribosomes, which are responsible for protein synthesis. The RER helps to produce and also transport proteins throughout the cell.
• The rough endoplasmic reticulum (ER) is a membranous network within the cytoplasm of a eukaryotic cell. It is responsible for the synthesis of proteins and lipids. The proteins that synthesized in the ER are transported to other parts of the cell, or to the cell membrane, where they function in cellular processes. The rough ER named for the ribosomes that attached to its surface. The ribosomes are used to synthesize proteins.
• The ER is a dynamic structure that is in constant flux. It is constantly growing and shrinking in response to the needs of the cell. The ER is especially active during times of growth or stress, such as during cell division or when the cell subjected to heat or radiation.

Endomembrane System

• The endomembrane system is a network of membranes inside a cell. The system includes the plasma membrane, the nuclear envelope, the endoplasmic reticulum, the Golgi apparatus, and the lysosomes. The endomembrane system helps to organize and process the cell’s contents.
• The endomembrane system is a cellular system that is responsible for the transport and organization of molecules within the cell. This system is made up of a number of membrane-bound organelles, including the endoplasmic reticulum, the Golgi apparatus, lysosomes, and mitochondria. The endomembrane system is responsible for the transport of proteins and lipids between these organelles, as well as the transport of molecules between the cytoplasm and the cell membrane. The endomembrane system also plays a role in the organization of the cell’s cytoskeleton.Endoplasmic Reticulum
• The endoplasmic reticulum (ER) is a network of membranes that forms an interconnected system throughout the cytoplasm of cells. The ER has two main functions: to modify and package proteins for secretion from the cell, and to create and it also maintain the cell’s internal environment by regulating the concentration of ions and metabolites. Therefore the ER also involved in lipid metabolism and the synthesis of cholesterol and other steroids.

Types of Endoplasmic Reticulum

• Endoplasmic reticulum (ER) a type of organelle found in the cytoplasm of cells. It is a network of membranous tubes and sacs that extend throughout the cytoplasm. The ER plays an important role in the transport and processing of proteins and lipids.
• The ER can divided into two main types: the rough ER and the smooth ER. The rough ER so named because it has a roughened appearance due to the presence of ribosomes on its surface. The ribosomes used to synthesize proteins. The smooth ER does not have ribosomes on its surface and involved in the transport and processing of lipids.
• The ER also divided into two main types according to the type of membrane it possesses: the plasma membrane and the Golgi membrane. The plasma membrane is the outermost layer of the ER and is responsible for the transport of proteins and lipids to and from the cell. The Golgi membrane is the innermost layer of the ER and is responsible for the transport and processing of proteins and lipids.

Smooth Endoplasmic Reticulum

The Smooth Endoplasmic Reticulum (SER) is a type of endoplasmic reticulum that found in cells. Therefore the SER is a smooth, ribbon-like structure that made up of a series of interconnected tubes.

Rough Endoplasmic Reticulum

The rough endoplasmic reticulum (ER) is a type of endoplasmic reticulum (ER) that has a rough appearance due to the presence of ribosomes on its surface. Therefore the rough endoplasmic reticulum involved in the synthesis of proteins.