The endomembrane system (article) | Khan Academy
https://www.khanacademy.org/science/ap-biology/cell-structure-and-function/cell-compartmentalization-and-its-origins/a/the-endomembrane-system
OverviewIntroductionWhat is the endomembrane system?The endoplasmic reticulumRough ERSmooth ERThe Golgi apparatusLysosomesVacuolesLysosomes vs. peroxisomes The rough endoplasmic reticulum (rough ER) gets its name from the bumpy ribosomes attache…Inside the ER, the proteins fold and undergo modifications, such as the addition of carbohydrate side chains. These modified proteins will be incorporated into cellular membranes—the membrane of the ER or those of other organelles—or secreted from the cell. If the modified proteins are not destined to stay in the ER, they will be packaged into vesicles, o…Since the rough ER helps modify proteins that will be secreted from the cell, cells whose job is to secrete large amounts of enzymes or other proteins, such as liver cells, have lots of rough ER.
The rough endoplasmic reticulum (rough ER) gets its name from the bumpy ribosomes attache…Inside the ER, the proteins fold and undergo modifications, such as the addition of carbohydrate side chains. These modified proteins will be incorporated into cellular membranes—the membrane of the ER or those of other organelles—or secreted from the cell.
If the modified proteins are not destined to stay in the ER, they will be packaged into vesicles, o…Since the rough ER helps modify proteins that will be secreted from the cell, cells whose job is to secrete large amounts of enzymes or other proteins, such as liver cells, have lots of rough ER.
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