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MEET ER
Rough ER (RER)
Smooth ER (SER)
The rough endoplasmic reticulum (RER) is structurally unique, as it is attached to the nuclear envelope that surrounds the nucleus and is embedded with ribosomes on its exterior surface. Also, it consists of flattened sacs involved in the synthesis and packaging of proteins as well as the transportation of molecules throughout the cell. The RER provides direct communication and ships proteins in vesicle transports.
The smooth endoplasmic reticulum (SER) acts as a storage organelle and it is crucial in the creation of lipids (fats) and steroids. Moreover, the organelle can instantly provide ions (such as calcium) to contract muscles while storing them when they are at rest. Similar to an automated assembly line, SER is devoted to manufacture lipids and detoxify substances.
“I am a network of continuous membranes that extend from the nuclear membrane to the cell membrane throughout the cytoplasm.” The phospholipid membrane encloses a space, the cisternal space (lumen), from the cytosol, which is continuous with the perinuclear space In other words, the lumen, which is the space within the branching tubules, connects all of the organelles to each other to allow for the production, processing and transportation of various biochemical compounds necessary to survive. The functions of the endoplasmic reticulum vary greatly depending on the exact type of endoplasmic reticulum and the type of cell in which it resides. The main varieties are called rough endoplasmic reticulum and smooth endoplasmic reticulum). Lastly, I am also held together by the cytoskeleton. The quantity of RER and SER will vary based on changing metabolic needs and massive changes can occur in the protein content without any noticeable structural adjustments.
Structure
Function & Significance
The endoplasmic reticulum (ER) has a wide range of functions including carbohydrate and lipid synthesis. The organelle serves as a transitional area for vesicles to transport ER products to various destinations. In addition, it plays an important role in preventing toxins from harming your body by producing enzymes that target such compounds. Furthermore, the organelle is vital to indicate when there is a potential threat to the cell. Components within could be dying and without the ER, organelles wouldn’t be aware of it. In all, it could take a significant amount of time for the cell to replenish itself, however you are luckily to be alive since the ER is able to sense cellular stress and trigger rescue responses to its friends.