Question

the site of protein synthesis found free in cytoplasm as well attached to rough ER found in all cell​

Answer 1

Answer:

the Endoplasmic Reticulum

All eucaryotic cells have an endoplasmic reticulum (ER). Its membrane typically constitutes more than half of the total membrane of an average animal cell The ER is organized into a netlike labyrinth of branching tubules and flattened sacs extending throughout the cytosol . The tubules and sacs are all thought to interconnect, so that the ER membrane forms a continuous sheet enclosing a single internal space. This highly convoluted space is called the ER lumen or the ER cisternal space, and it often occupies more than 10% of the total cell volume The ER membrane separates the ER lumen from the cytosol, and it mediates the selective transfer of molecules between these two compartments.