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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 function of the rough ER?

    A:

    The rough endoplasmic reticulum (ER) performs several crucial functions, such as manufacturing lysosomal enzymes, manufacturing secreted proteins, integrating proteins in the cell membrane and facilitating glycosylation. The rough ER is an ancillary component of the broader endoplasmic reticulum, which contains a smooth surface in addition to the rough edges of the ER. Despite sharing a location, the smooth and rough ER perform different functions to facilitate basic operations within cells.

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  • Q:

    What does the endoplasmic reticulum do?

    A:

    The endoplasmic reticulum has numerous functions including the manufacture of membranes and secretory proteins, carbohydrate and lipid synthesis and the detoxification of compounds. The function depends on which cells ? such as pancreatic or white blood cells ? the endoplasmic reticulum is located.

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  • Q:

    What is the function of endoplasmic reticulum?

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    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 is an organelle that modifies and packages proteins?

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    The organelle that modifies and packages proteins is the Golgi apparatus. This organelle comprises several flattened sacs called cisternae. The Golgi apparatus, also called the Golgi body or Golgi complex, has two sides or faces, the cis face and the trans face, as described in "The Cell: A Molecular Approach."

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