Question

Then what about ribosomes??

Answer 1

Ribosomes are the site of protein synthesise in the cell. They are therefore also called protein factories.

Answer 2

The ribosomes are tiny granules composed of rRNAs and proteins. They are sites of protein synthesis in the cytoplasm, mitochondria and plastids. They occur singly or in rows, called polysomes, in the cytosol or on RER membranes and outer nuclear membrane. Each ribosome consists of small and a large subunits, which join for protein synthesis.