What is the endoplasmic reticulum structure?
The ER consists of the nuclear envelope and the peripheral ER, which includes smooth tubules and rough sheets. While the ER is defined as an interconnected network with a continuous membrane, the different structures that make up the ER perform very diverse and specialized functions within the cell.
What are the main characteristics of endoplasmic reticulum?
The characteristics of endoplasmic reticulum is as follows: It is an organelle that can be found in the eukaryotic cells. These organelles form an interconnected network of flattened, sacs or tube like structures called as cisternae. The endoplasmic reticulum helps to form a skeletal framework.
What is the structure and function of the endoplasmic reticulum?
The endoplasmic reticulum (ER) is the largest membrane-bound organelle in eukaryotic cells and performs a variety of essential cellular functions, including protein synthesis and processing, lipid synthesis, and calcium (Ca2+) storage and release.
What are the 3 main functions of the endoplasmic reticulum?
The endoplasmic reticulum (ER) serves important functions particularly in the synthesis, folding, modification, and transport of proteins.
What are the functions of endoplasmic reticulum?
Endoplasmic reticulum performs the following functions: It is responsible for the production and secretion of steroid hormones. It is also responsible for the synthesis of essential lipids such as phospholipids and cholesterol. It is responsible for the metabolism of carbohydrates.
What does the endoplasmic reticulum look like?
The endoplasmic reticulum looks like a system with membranes that form cavities, flat cisterns and non-lamellar, round structures.
What are the characteristics of endoplasmic reticulum Class 9?
The large network of membranous sheets and tubes is called endoplasmic reticulum. They are filled with fluids and carries materials throughout the cell due to which it is also called transport system of the cell. It transports materials between the regions of cytoplasm or between the cytoplasm and nucleus.
How does the structure of the endoplasmic reticulum smooth and rough allow it to fulfill its function?
Rough ER contains attached ribosomes while smooth ER does not. Via the attached ribosomes, rough endoplasmic reticulum synthesizes proteins via the translation process. Smooth endoplasmic reticulum serves as a transitional area for transport vesicles. It also functions in carbohydrate and lipid synthesis.
What are the two types of endoplasmic reticulum and what are their functions?
The two types of endoplasmic reticulum in cells are rough ER and smooth ER. They have separate functions but work together to process protein molecules in the cell.
What are the different types of endoplasmic reticulum write the functions of each?
the two types of endoplasmic reticulum are : rough endoplasmic reticulum: their main function is produce proteins in the cells and ribosomes are attached to their surface. smooth endoplasmic reticulum: their main function is to produce lipids and also detoxify toxins in the body in the liver and kidney cells.
What is the structural difference between rough endoplasmic reticulum ER and smooth ER?
Smooth ER is derived from rough endoplasmic reticulum by sacrificing the ribosomes, whereas Rough ER originates from the nuclear membrane. The main difference between the SER and RER is the presence of ribosomes, as SER does not consist of ribosomes but RER consists of ribosomes.
How does the structure of the rough endoplasmic reticulum relate to its function?
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
Is the endoplasmic reticulum smooth or rough?
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins. Sometimes, when those proteins are made improperly,
What is the function of the endoplasmic reticulum?
The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.
How big are the vesicles of the endoplasmic reticulum?
The cisternae are long, flattened, sac-like, unbranched tubules having a diameter of 40 to 50 μm. They remain arranged parallelly in bundles or stakes. The vesicles are oval; membrane-bound vacuolar structures having a diameter of 25 to 500 μm.
Where does translation continue in the endoplasmic reticulum?
Translation continues on the ER and the emerging polypeptide can co-translationally enter the ER through the translocon [2], which is a channel that contains several Sec proteins and spans the lipid bilayer [13].