Nukleooliidid

Nukleooliidid, also known as nucleoli, are small, dense bodies found within the nucleus of eukaryotic cells. They are primarily composed of proteins and ribonucleoprotein complexes, and their primary function is to synthesize and assemble ribosomal RNA (rRNA) and ribosomal proteins into ribosomes. Ribosomes are essential for protein synthesis, which is a fundamental process in all living organisms. The number and size of nucleoli can vary depending on the cell's activity and stage of the cell cycle. During interphase, nucleoli are typically visible, but they disappear during mitosis. Nucleoli are often stained with silver or other dyes to make them visible under a microscope. Their structure and function have been extensively studied, and they play a crucial role in maintaining the cell's ability to produce proteins, which are vital for cellular growth, repair, and function.