Part of the ER is contiguous with the nuclear envelope. The Golgi apparatus is also closely associated with the ER and recent observations suggest that parts of the two organelles, i. This is an extensive organelle composed of greatly convoluted but flattish sealed sacs, which are contiguous with the nuclear membrane. 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. This process is called translation. Certain cells of the pancreas and digestive tract produce a high volume of protein as enzymes. Many of the proteins are produced in quantity in the cells of the pancreas and the digestive tract and function as digestive enzymes.
Proteins are produced for the plasma membrane, Golgi apparatus, secretory vesicles, plant vacuoles, lysosomes, endosomes and the endoplasmic reticulum itself. Some of the proteins are delivered into the lumen or space inside the ER whilst others are processed within the ER membrane itself. In the lumen some proteins have sugar groups added to them to form glycoproteins. Some have metal groups added to them. Origin of endoplasmic reticulum First recorded in — Words nearby endoplasmic reticulum endophlebitis , endophora , endophthalmitis , endophyte , endoplasm , endoplasmic reticulum , endopodite , endopolyploidy , endoproct , Endoprocta , endopterygote.
How to use endoplasmic reticulum in a sentence This dish is based on the beautiful white honeycomb tripe, which comes from the second stomach, or the reticulum, of an ox. What to Eat: Offal Cookstr. The membrane network in cytoplasm that is composed of tubules or cisternae. Some membranes carry ribosomes on their surfaces while others are smooth.
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How to say endoplasmic reticulum in sign language? Numerology Chaldean Numerology The numerical value of endoplasmic reticulum in Chaldean Numerology is: 6 Pythagorean Numerology The numerical value of endoplasmic reticulum in Pythagorean Numerology is: 8. Select another language:. Please enter your email address: Subscribe.
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