Final answer:
Ribosomes are required to form a macromolecular assembly such as a ribosome. They are composed of both structural and catalytic ribosomal RNAs and distinct polypeptides. The nucleolus is responsible for the synthesis and assembly of rRNAs, while other molecules and macromolecules like tRNAs and enzymatic factors are also involved in translation.
Step-by-step explanation:
Ribosomes are required to form a macromolecular assembly such as a ribosome. Ribosomes are complex structures composed of both structural and catalytic ribosomal RNAs (rRNAs) and distinct polypeptides. In eukaryotes, the nucleolus is responsible for the synthesis and assembly of rRNAs, which are essential components of ribosomes. Additionally, other molecules and macromolecules such as tRNAs and various enzymatic factors are also required for the process of translation.