ANATOMY

Detailed explanation-1: -The most prominent substructure within the nucleus is the nucleolus (see Figure 8.1), which is the site of rRNA transcription and processing, and of ribosome assembly. As discussed in the preceding chapter, cells require large numbers of ribosomes to meet their needs for protein synthesis.

Detailed explanation-2: -An area inside the nucleus of a cell that is made up of RNA and proteins and is where ribosomes are made. Ribosomes help link amino acids together to form proteins. The nucleolus is a cell organelle.

Detailed explanation-3: -The Nucleolus is referred to as the storage of proteins and RNA in the nucleolus. The Nucleus is a site for transcription in which messenger RNA is produced for protein synthesis. The nucleus functions as the exchange of hereditary molecules that is RNA and DNA between the nucleus and the rest of the cell.

Detailed explanation-4: -Molecules of rRNA are synthesized in a specialized region of the cell nucleus called the nucleolus, which appears as a dense area within the nucleus and contains the genes that encode rRNA.

Detailed explanation-5: -The nucleus controls and regulates the activities of the cell (e.g., growth and metabolism) and carries the genes, structures that contain the hereditary information. Nucleoli are small bodies often seen within the nucleus. The gel-like matrix in which the nuclear components are suspended is the nucleoplasm.