What Is One Function Of The Smooth Endoplasmic Reticulum – Did you know that the smooth endoplasmic reticulum has a vital role in the detoxification process, which takes place in the liver? It was noted that the amount of smooth ER in the liver increases significantly, when there is an overload of toxins in the body.

One of the most essential parts of a cell, the endoplasmic reticulum is responsible for various functions, such as protein synthesis. It is found in eukaryotic cells of plants and animals, and not in prokaryotic cells. However, recent research suggests that some types of prokaryotic cells have organelles similar to the endoplasmic reticulum.

What Is One Function Of The Smooth Endoplasmic Reticulum

Endoplasmic reticulum (ER) is a complex network of membranes, found in the form of tubes, and compressed sac-like structures called cisternae. The internal space of the organelle, called the cistern space, is interconnected and filled with fluid. The cistern space is found in continuity with the perinuclear space – the space between the inner and outer nuclear membranes. Endoplasmic reticulum is arranged in irregular rows, along the circumference of the nucleus. It is surrounded by cytosol, the liquid part of the cytoplasm, where the organelles hang. The cross-sectional diagram given below shows the nucleus and perinuclear space, the rough endoplasmic reticulum with ribosomes and the smooth endoplasmic reticulum.

Smooth Vs. Rough Endoplasmic Reticulum: 6 Key Differences, Structure, Functions

There are three different types of endoplasmic reticulum – rough, smooth, and sarcoplasmic reticulum. The third and final type, called sarcoplasmic reticulum, is a type of smooth endoplasmic reticulum, found in both smooth and striated muscles. Most of the cells consist of rough and smooth types, which are mostly continuous in nature. Rough ERs are found mainly near the nucleus and the Golgi apparatus, while smooth ones extend to the periphery of the cell. The rough endoplasmic reticulum is studded with ribosomes, giving it a granular appearance. The smooth ER has few or no ribosomes. In general, the concentration of smooth ER is less, compared to the concentration of rough ER.

As mentioned above, the two types of endoplasmic reticulum differ in appearance, location, function and concentration. The smooth ER is said to be derived from the coarse type and is mainly perceived as a continuation of the latter. The smooth ER is like an interconnected tubular network that can extend to the periphery of the cell. It is mainly responsible for the production and metabolism of lipids. Smooth endoplasmic reticulum is assigned various functions, which may vary with different cell types.

The main difference between them lies in the look. The rough type has an uneven surface, while the smooth ER has a smooth surface. The rough ER consists of interconnected, sac-like structures that look like discs arranged in irregular rows. The smooth ER is like a network of interconnected tubules.

As mentioned above, rough endoplasmic reticulum is mainly responsible for the synthesis of proteins and smooth type is involved in the synthesis and metabolism of lipids. Smooth ER is also a location for storage and transportation.

Endoplasmic Reticulum (smooth)

The proportion of smooth endoplasmic reticulum is very small, compared to that of rough ER. Smooth ER is found mainly in cells that are actively involved in lipid synthesis and metabolism. It is clearly seen in the liver, ovaries, testicles, muscles, etc.

In short, smooth endoplasmic reticulum is primarily intended for the storage and transport of lipids and proteins. Although it is thin, compared to the rough ER, a smooth one is involved in some of the vital functions of the cells.

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Cell Structure For Ap® Biology

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Smooth endoplasmic reticulum, or smooth ER, is the organelle in organic cells that manufactures products for other parts of the cell. Learn about the definition, unique structure, and functions of smooth ER in cell survival.

Biology4kids.com: Cell Structure: Endoplasmic Reticulum

The smooth endoplasmic reticulum, or smooth ER, is an organelle found in both animal and plant cells. An organelle is a subunit within a cell that has a specialized function.

The main function of the smooth ER is to make cellular products such as hormones and lipids. It also distributes those products throughout the cell and to places in the organism. The smooth ER also regulates and releases calcium ions and processes toxins. It is described as ‘smooth’ to distinguish it from rough ER, which has ribosomes for protein synthesis on its surface.

Each organelle in the cytoplasm of a cell is responsible for performing a specific function. Rough and smooth ER each produce different products for the cell.

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Information About The Smooth Endoplasmic Reticulum And Its Functions

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You can think of the smooth ER as a factory that manufactures many of the products a cell needs to function. Exactly what it does depends on the type of cell. Imagine two factories in two different locations. One is in the middle of farm country, where corn grows as far as the eye can see. The other is on the ocean coast where fishing is the main industry. The factory on farmland produces corn syrup for use in a number of packaged foods. The seaside factory produces canned fish products. Each factory makes and distributes the type of product that makes sense for its location.

Smooth ER also makes or distributes products according to its location. In muscle cells, it releases calcium ions because they are needed for muscle contraction. In the cells of the endocrine system, responsible for hormone regulation, smooth ER makes steroid hormones.

Smooth ER consists of a long network of folded, tube-like structure. You can think of it as a pipeline with many twists and turns. The interior of the smooth ER is called the lumen, which is enclosed by a phospholipid membrane, just like the membrane that encloses the whole cell.

Any Two Functions Of Endoplasmic Reticulum!!no Spam! ​

The number of smooth ER units in a cell depends on the type of cell and its manufacturing needs. These units are located in the cytoplasm, the gel-like substance inside a cell, and are sometimes attached to a unit of rough endoplasmic reticulum. Smooth and rough ER are often associated with each other, but can be distinguished by shape (smooth ER is tubular, while rough ER is flatter) and the presence or absence of ribosomes on the surface.

Smooth ER is largely a manufacturing organelle, which makes and distributes the molecules needed by a particular type of cell. Most smooth ER in plant and animal cells makes lipids, or fatty acids, and therefore cells involved in lipid manufacturing contain many units of this organelle. For example, animal endocrine cells that use cholesterol to make steroid hormones have many units of smooth ER. In these cells, the smooth ER produces hormones.

Liver cells in animals also contain sufficient units of smooth ER. In these cells, the organelle has a special role to play. Here, smooth ER uses enzymes to help the liver with detoxification. These enzymes break down toxic compounds, including ethanol from drinking alcohol.

In animal muscle cells, regulation of calcium ion levels is an important part of muscle contraction. The smooth ER in muscle cells is responsible for releasing calcium ions when muscles need to contract. A flood of ions into the cytoplasm triggers the steps leading to contraction.

One Of The Chief Functions Of Smooth Endoplasmic Reticulum Is

Smooth ER is not just a factory, making needed cellular products. It must also distribute those products in animal and plant cells. To do so, small spheres called vesicles bud from a membrane

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