The endoplasmic reticulum is a network of tubules and flattened sacs that serve a variety of functions in the cell. There are two regions of the ER that differ in both structure and function. One region is called rough ER because it has ribosomes attached to the cytoplasmic side of the membrane. The other region is called smooth ER because it lacks attached ribosomes. Typically, the smooth ER is a tubule network and the rough ER is a series of flattened sacs. The space inside of the ER is called the lumen.
http://biology.about.com/od/cellanatomy/ss/endoplasmic-reticulum.htm
There are two types of endoplasmic reticulum: rough endoplasmic reticulum (rough ER) and smooth endoplasmic reticulum (smooth ER). Both types are present in plant and animal cells. The two types of ER are separate entities and are not joined together.
http://bscb.org/learning-resources/softcell-e-learning/endoplasmic-reticulum-rough-and-smooth/
In pancreatic cells, the rough ER produces insulin. The rough and smooth ER are usually interconnected and the proteins and membranes made by the rough ER move into the smooth ER to be transferred to other locations. The smooth ER has a wide range of functions including carbohydrate and lipid synthesis.
http://biology.about.com/od/cellanatomy/ss/endoplasmic-reticulum.htm
Endoplasmic reticulum (ER) consists of interconnected network of membrane vesicles. ER is the only organelle that has direct physical connection with nucleus, the nuclear membrane. History: The first one to observe ER was Porter in electron micrographs of liver cells and he coined the term Endoplasmic reticulum.
http://www.biologyexams4u.com/2012/04/endoplasmic-reticulam.html
The membranes that make up the rough endoplasmic reticulum are composed of lipids just like the membrane that surrounds the entire cell itself. The surface of rough endoplasmic reticulum is dotted with other organelles known as ribosomes. Ribosomes are cellular organelles composed of two subunits that produce proteins.
http://study.com/academy/lesson/rough-endoplasmic-reticulum-definition-structure-functions.html
It is ‘smooth’ because it is not studded with ribosomes and is associated with smooth slippery fats. CELLS NEED THE ROUGH AND THE SMOOTH. Think of a cell as a “multitude of membranes” we said in an earlier section. This statement certainly applies to the endoplasmic reticulum an organelle found in eukaryotic cells. About 50% of the total membrane surface in an animal cell is provided by endoplasmic reticulum (ER).
http://bscb.org/learning-resources/softcell-e-learning/endoplasmic-reticulum-rough-and-smooth/
The various folds of the endoplasmic reticulum provide a large surface where cellular functions can take place. There are two types of endoplasmic reticulum: smooth and rough. Rough endoplasmic reticulum is a form of endoplasmic reticulum that is studded with ribosomes. Since it has ribosomes stuck all over it, it has a bumpy appearance and is therefore called rough endoplasmic reticulum.
http://study.com/academy/lesson/rough-endoplasmic-reticulum-definition-structure-functions.html
SER smooth endoplasmic reticulum (smooth=no ribosomes on the surface) is the site of phospholipid biosynthesis. Drugs or toxic materials from both inside and outside of cells (xenobiotics) once inside the body are detoxified by enzymes present in the SER (Cytochrome P450 involved in drug detoxification).
http://www.biologyexams4u.com/2012/04/endoplasmic-reticulam.html
Definition of Rough Endoplasmic Reticulum. Cellular organelles are like tiny organs found in a cell that perform specific functions like the large organs in our bodies.
http://study.com/academy/lesson/rough-endoplasmic-reticulum-definition-structure-functions.html
These are called membrane bound ribosomes and are firmly attached to the outer cytosolic side of the ER About 13 million ribosomes are present on the RER in the average liver cell. Rough ER is found throughout the cell but the density is higher near the nucleus and the Golgi apparatus. Ribosomes on the rough endoplasmic reticulum are called ‘membrane bound’ and are responsible for the assembly of many proteins.
http://bscb.org/learning-resources/softcell-e-learning/endoplasmic-reticulum-rough-and-smooth/
what structure is found on the rough er
Ribosomes is a structure that is found on the rough endoplasmic reticulum.