Q:

What is the function of the rough endoplasmic reticulum?

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Quick Answer

The rough endoplasmic reticulum is an organelle that produces proteins and helps them fold properly. Cells also have a smooth endoplasmic reticulum that processes fats and steroid hormones.

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What is the function of the rough endoplasmic reticulum?
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Full Answer

The endoplasmic reticulum is a membrane-bound structure that is a part of every eukaryotic cell. This organelle plays a large role in the synthesis of large, complex proteins and amino acids. The membranes of an endoplasmic reticulum is lined with ribosomes. The ribosomes give the organelle a rough appearance and give the organelle its name. The ribosomes in the rough endoplasmic reticulum manufacture proteins. These proteins are manufactured from chains of amino acids. The proteins then enter the different channels of the organelle and move through the organelle’s membranes. As the proteins travel through the organelle, they create small pockets. These pockets pinch off from the organelle and form vesicles. The vesicles transport the proteins to the Golgi complex, where they are processed and distributed to different cells.

The smooth endoplasmic reticulum is another organelle in eukaryotic cells that synthesizes lipids. This organelle is located near the rough endoplasmic reticulum, and it produces phospholipids and cholesterol that help stabilize the membranes of the entire cell. The smooth endoplasmic reticulum and the rough endoplasmic reticulum both play vital roles in processing and synthesizing compounds for the cell.

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Related Questions

  • Q:

    What is the name for the small bumps located on the endoplasmic reticulum?

    A:

    According to the British Society for Cell Biology, rough endoplasmic reticulum is studded with ribosomes. Rough ER is a cellular membrane-bound organelle involved in protein production, protein folding, quality control and protein dispatch. Rough ER is contrasted with smooth ER, which does not contain ribosomes and serves a separate function.

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  • Q:

    What is the function of endoplasmic reticulum?

    A:

    In addition to other jobs, the endoplasmic reticulum creates and folds proteins and then carries these synthesized substances to the Golgi apparatus via the vesicles. The endoplasmic reticulum also executes sorting activities for the cell's proteins. However, the precise duties carried out by the endoplasmic reticulum vary by both species and cell type.

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  • Q:

    What does the smooth endoplasmic reticulum do?

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    The smooth endoplasmic reticulum, or smooth ER, performs functions in several metabolic processes, including synthesis of steroids, lipids and phospholipids, as well as the metabolism of carbohydrates, elimination of drugs from the system and attachment of receptors to cell membrane proteins. Both the smooth and rough endoplasmic reticulum form an organelle in eukaryotic organisms creating a network of tubes or sacs called cisternae, but it is the smooth endoplasmic reticulum that helps the body eliminate a number of toxins.

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  • Q:

    Who discovered the endoplasmic reticulum?

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    The endoplasmic reticulum was discovered in 1945 by researchers Ernest Fullman, Keith Porter and Albert Claude. The endoplasmic reticulum is separated into two categories. The parts of the organelle with ribosomes on the surface are called rough and areas without ribosomes are smooth.

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