BIOMOLECULES AND ENZYMES

Detailed explanation-1: -Ribosomes can be found as free structures in the cytoplasm or strung along mRNA molecules as they participate in protein synthesis.

Detailed explanation-2: -A ribosome is an intercellular structure made of both RNA and protein, and it is the site of protein synthesis in the cell.

Detailed explanation-3: -Ribosomes act as the site for protein synthesis. The mRNA molecules travel out of the nucleus into the cytoplasm and are translated into proteins in the cytoplasm. Ribosomes are RNA-protein complexes and are not specific cell organelles.

Detailed explanation-4: -The RER is associated with many roles in protein synthesis, which also include post-translational modifications, folding, and sorting. Membrane-bound ribosomes in the RER translate the mature mRNA transcript into amino acids that are attached to become polypeptides.