Smooth endoplasmic reticulum
All eucaryotic cells have an endoplasmic reticulum (er) its membrane typically constitutes more than half of the total membrane of. Looking for endoplasmic reticulum find out information about endoplasmic reticulum an intracellular membrane system that is present in all eukaryotic cells in most cells the endoplasmic reticulum is thought to consist of only one. The smooth endoplasmic reticulum, or smooth er, is an organelle found in both animal cells and plant cells an organelle is a sub-unit within a cell that has a specialized function the main function of the smooth er is to. Collection of enzymes that perform specialized learn with flashcards, games, and more — for free. Figure 179 from chapter 5 (endoplasmic reticulum) of 'the cell, 2nd ed' by don w fawcett md electron micrograph showing a portion of the cytoplasm of a liver cell. The endoplasmic reticulum (er) is an organelle made up of a network of flattened sacs or tubules the membranes of the er are connected to the nuclear membrane and run through the cytoplasm there are two types of er: (1) the rough endoplasmic reticulum (rer) and (2) the smooth endoplasmic reticulum (ser. The rough appearance of the rough endoplasmic reticulum (rer) results from the presence of ribosomes that are bound to the cytosolic side of the endoplasmic reticulum membrane protein synthesis the smooth endoplasmic reticulum (ser) has no such bound ribosomes and is not involved in protein synthesis. Why is a cell's rough endoplasmic reticulum similar to a city's industrial park.
The endoplasmic reticulum (er) is a network of membrane-enclosed tubules and sacs (cisternae) that extends from the nuclear membrane throughout the cytoplasm (figure 91) the entire endoplasmic reticulum is enclosed by a continuous membrane and is the largest organelle of most eukaryotic cells. The smooth endoplasmic reticulum forms a continuous system with rough endoplasmic reticulum it consists of smooth membrane segments and is found in the regions of rich glycogen it is related with peroxisomes. Smooth endoplasmic reticulum the smooth endoplasmic reticulum functions in many metabolic processes it synthesizes lipids, phospholipids as in plasma membranes, and steroids. The smooth component of the term smooth endoplasmic reticulum or ser indicates that there are no ribosomes attached to the surfaces of the endoplasmic reticulum - this is as opposed to rough endoplasmic reticulum (rer) which does have ribosomes attached to it see also the functions of cell organelles.
The endoplasmic reticulum, or er, is an organelle found in all eukaryotic cells within each cell it is a widely distributed membrane structure that serves as the the site for modification of proteins, manufacture of macromolecules and lipids, and the transfers substances throughout the cell. In cell (biology): the smooth endoplasmic reticulum the functions of the ser, a meshwork of fine tubular membrane vesicles, vary considerably from cell to cell one important role is the synthesis of phospholipids and cholesterol, which are major components of the plasma and internal membranes. Endoplasmic reticulum a network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough endoplasmic reticulum) involved in the transport of materials.
The smooth endoplasmic reticulum sequesters almost all of the ca from the cytosol [2,12] more smooth endoplasmic reticulum 2+ the smooth er sequesters ca2+ ions from the cytosol for storage in the er lumen this is achieved via a ca2+ pump and high concentrations of calcium-binding proteins within the lumen. Endoplasmic reticulum the endoplasmic reticulum (er) is a type of organelle in eukaryotic cells that forms an interconnected network of flattened, membrane-enclosed sacs or tube-like structures known as cisternae the membranes of the er are continuous with the outer nuclear membrane. The endoplasmic reticulum (er) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells the golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell.
Smooth endoplasmic reticulum
Smooth endoplasmic reticulum in contrast to the rer, smooth endoplasmic reticulum lacks ribosomes and is not involved in protein synthesis note that the lack of ribosomes means that the smooth er is not basophilic. The endoplasmic reticulum (er) is an organelle that occurs as interconnected network of flattened sacs or tubules (called cisternae) the membranes of the er are connected to the nuclear membrane and run through the cytoplasm. Smooth endoplasmic reticulum found in the liver cells contain detoxifying enzymes that can inactivate harmful toxins, like drugs and metabolic waste another function is transportation of newly synthesized lipids and proteins (from rough er) to other locations, both inside and outside the cell.
- Endoplasmic reticulum has two types, rough endoplasmic reticulum (rer) and smooth endoplasmic reticulum (ser) rough er is studded with ribosomes, the site of protein synthesis this type of er is especially prominent in certain kinds of cells like hepatocytes where active protein synthesis occurs.
- Endoplasmic reticulum shortly called as er is the essential part of a cell er is closely associated with other organelles of the cell.
- Modifications of endoplasmic reticulum: (a) sarcoplasmic reticulum: sarcoplasmic reticulum, found in the skeletal and cardiac muscles is a highly modified form of smooth.
- Advertisements: endoplasmic reticulum: structure, types and function of endoplasmic reticulum the electron microscope reveals an extensive membrane system in the cytoplasm called endoplasmic reticulum (er.
Smooth endoplasmic reticulum function: franklin institute, thinkquest, cytochemistry, cuny role of the endoplasmic reticulum the primary role of endoplasmic reticulum, er, is for the production of lipid and protein components of most organelles of the cell. These parts are called the rough endoplasmic reticulum to contrast them with the smooth endoplasmic reticulum where there are no attached ribosomes. Rough endoplasmic reticulum (rer), so called because it is studded with ribosomes, and secretes proteins into the cytoplasm smooth endoplasmic reticulum (ser) among its functions is the production of proteins and steroids, the maintenance of plasma membranes, and a pathway for molecules to move along. A network of tubular membranes within the cytoplasm of the cell, occurring either with a smooth surface (smooth endoplasmic reticulum) or studded with ribosomes (rough. I agree with pramod the smooth er performs a wide variety of functions, which makes it hard to come up with a solid analogy i would also caution against taking analogies about other organelles too seriously, as many organelles have additional ro.