Question

How can be free ribosomes proteins modified without endoplasmic reticulum and golgi?

Answer 1

Ribosomes are the sites of protein synthesisand carry out this work by assembling the amino acids in the appropriate sequence, as dictated by the mRNA (messenger RNA). ... The main function of the endoplasmic reticulum is to transport the newly synthesized proteins over to the Golgi apparatus.

Answer 2

The basic function of ribosomes within the biological cells is to synsthesise and modify protein.

The free ribosmes are found in the cytosol of the cell, produce altogether different proteins than those attached to the endoplasmic reticulum.

They produce proteins essential for functioning of the cell, which are not produced elsewhere.

Such proteins are found in the cytoskeleton and cytosol of the cell and are used by the mitochondria and the chloroplasts in the plant cells.