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The endoplasmic reticulum
is a large system of membranes that accounts for a majority of all membranes in a eukaryotic cell
is not involved in protein synthesis. it is the site of the synthesis of fatty acids and phospholipids
get its name because it surface is studded covered with ribosomes and is the site of synthesis for certain proteins
The rough endoplasmic reticulum (rough ER) is a
a complex membrane-bound organelle and is involved in the transport of the proteins made by ribosomes on its surface. Found in eukaryotic cells — the cells of plants, animals, and humans
the rough endoplasmic reticulum changes with the needs of the cells
When the cell is actively making proteins, the rough ER can enlarge and become more complex.
Ribosomes that dot its surface move onto the membrane as they begin to
make protein and move off when they are done.
The function of the rough endoplasmic reticulum is intimately bound to the
production and transport of proteins in the cell.
The smooth ER is responsible for a variety of vital cell processes that include
carbohydrate metabolism, lipid synthesis, calcium storage, and drug and poison detoxification
refers to the production, storage and use of carbohydrates within organisms.
Animal cells involved in hormone secretion are
rich in smooth ER, which is fitting given the role of the smooth ER in steroid and hormone production
the ribosomees on the rough ER serce as the
place for the synthesis of proteins that are directed by the genes to be put together in the ER
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