ANATOMY

Detailed explanation-1: -Nucleolus: Synthesis of proteins and ribosome manufacturing aids in the nucleus. Within the nucleus of eukaryotic cells, a component called nucleolus is present. The nucleolus, an organelle is associated with Ribosome function.

Detailed explanation-2: -The endoplasmic reticulum can either be smooth or rough, and in general its function is to produce proteins for the rest of the cell to function. The rough endoplasmic reticulum has on it ribosomes, which are small, round organelles whose function it is to make those proteins.

Detailed explanation-3: -To build proteins, the two ribosomal subunits, small and large, assemble together to form the complete ribosome. It has binding sites for mRNA and transfer RNA (tRNA) molecules. The large subunit sits on top of the small subunit, with the mRNA template sandwiched in between the two.

Detailed explanation-4: -Explanation : Nucleolus is a darkly pigmented portion of nucleus . It produces rRNA which moves from there to cytoplasm and join with proteins to form ribosomes. So it concludes that nucleolus is the portion of cell which forms ribosomes.

Detailed explanation-5: -About two-thirds of this mass is composed of ribosomal RNA and one third of about 50+ different ribosomal proteins. Ribosomes are found in prokaryotic and eukaryotic cells; in mitochondria, chloroplasts and bacteria.