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A membrane enclosed orgnanelle that contains the chromosomes. It controls and regulates the activity of the cell.
The nucleolus is a substructure within the cell nucleus that is responsible for the synthesis and assembly of ribosomes. It is composed of proteins, RNA, and other molecules that help regulate the production of ribosomes. The nucleolus is essential for cell growth, division, and protein synthesis.
Chromatin is a complex of DNA, RNA, and proteins found within the nucleus of eukaryotic cells. It serves to package DNA into a more compact form, allowing it to fit within the nucleus. Chromatin also helps regulate gene expression and plays a role in DNA replication and repair.
The nuclear envelope is a double membrane structure that surrounds the nucleus of a cell. It is composed of two lipid bilayer membranes and contains pores that regulate the movement of molecules between the nucleus and cytoplasm. The nuclear envelope also helps maintain the shape and organization of the nucleus.
Nuclear pores are protein-based channels that traverse the double membrane of the nuclear envelope. They regulate the movement of molecules between the nucleus and cytoplasm, including ions, small molecules, and large molecules such as proteins and RNA.
Nucleoplasm is the fluid-like substance that fills the space within the nucleus of a cell. It is composed of water, ions, proteins, and nucleic acids, and it provides the environment in which DNA and other nuclear components can function.