A nucleolus is a substructure composed of nucleic acids and proteins that is found within the nucleus of a cell. Known as the ribosome production factory, malfunction of the nucleolus has been found to cause disease in h... More »

www.reference.com Science Biology Cells

In eukaryotic cells, the primary function of the nucleolus is to assemble ribosomes. In a cell nucleus, this is the biggest component. More »

The nucleolus works to transcribe ribosomal RNA (rRNA) and it forms incomplete ribosomes by combining proteins and rRNA. Other functions of this structure include transporting molecules, vital substances and ions to ensu... More »

The nucleolus contains all of the information needed for DNA replication, flow of proteins and RNA, all while controlling the synthesis of protein and cell replication. The nucleolus has several parts: the nuclear envelo... More »

www.reference.com Science Biology Cells

The nucleus controls protein synthesis in a cell's cytoplasm in the sense that the genetic codes contained in the nucleus determine the sequence of amino acids that are assembled to build the proteins. This is the only a... More »

Inside of the nucleolus, ribosomal subunits are synthesized using proteins and ribosomal RNA, or rRNA. The nucleolus then transports these subunits to the rest of the cell to be assembled into full ribosomes. More »

A cell's nucleus is able to control the other activities in a cell by expressing certain segments of its DNA, which creates proteins that perform specific activities. Proteins can vary from enzymes to structural componen... More »