Question

whats the function and structure of rough ER?

Answer 1

Function: ~RNA passes through the ribosomes where its sequence of nucleic acid codes for specific amino acids to be joined up in a specific order.
~The route through the ribosomes for the amino acid takes them into the membranes of the reticulum where they can be kept together. They are then moved of in vesicles formed from the ER membranes to the Golgi Apparatus to be packaged and processed.
~The rough ER is involved in protein synthesis. There are ribosomes attached to the surface, giving it a bumpy or 'rough' appearance. Ribosomes are the site of protein synthesis.
Structure: ~general structure is a membranous network of cisternae (sac-like structures) held together by the cytoskeleton.
~phospholipid membrane encloses a space, the cisternal space (or lumen), which is continuous with the perinuclear space but separate from the cytosol.
~functions of the endoplasmic reticulum vary greatly depending on its cell type, cell function, and cell needs. The ER can even modify to change over time in response to cell needs. The three most common varieties are called rough endoplasmic reticulum, smooth endoplasmic reticulum, and sarcoplasmic reticulum.