Final answer:
Ribosomes are the cellular structures responsible for protein synthesis. They consist of large and small subunits and are enzyme complexes that translate the genetic instructions from DNA into proteins.
Step-by-step explanation:
Ribosomes are the cellular structures responsible for protein synthesis.
When viewed through an electron microscope, ribosomes appear either as clusters or single, tiny dots that float freely in the cytoplasm.
They may be attached to the cytoplasmic side of the plasma membrane or the cytoplasmic side of the endoplasmic reticulum.
Ribosomes consist of large and small subunits and are enzyme complexes that translate the genetic instructions from DNA into proteins.