Ribosomes are structures in the cytoplasm where proteins are made, and rough endoplasmic reticulum has ribosomes attached d. Given these facts, where are the structures where proteins are made located on among the following options:
- epidermis and dermis
 - Something that makes plants green
 - The area was once underwater
 - Veins and arteries.
 - rough endoplasmic reticulum
 - sub-units of species
 - Earth orbiting the Sun
 - the body's largest organ


 

     rough endoplasmic reticulum    