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May 27, 2024 · nucleus, in biology, a specialized structure occurring in most cells (except bacteria and blue-green algae) and separated from the rest of the cell by a double layer, the nuclear membrane.
The cell nucleus (from Latin nucleus or nuculeus 'kernel, seed'; pl.: nuclei) is a membrane-bound organelle found in eukaryotic cells. Eukaryotic cells usually have a single nucleus, but a few cell types, such as mammalian red blood cells, have no nuclei, and a few others including osteoclasts have many.
The nucleus has 2 primary functions: It is responsible for storing the cell’s hereditary material or the DNA. It is responsible for coordinating many of the important cellular activities such as protein synthesis, cell division, growth and a host of other important functions.
Feb 4, 2021 · Nucleus is a membrane-bound organelle that houses DNA, the genetic material of a eukaryotic cell whereas nucleolus is a sub-organelle found within the nucleus containing RNA and is responsible for ribosome synthesis.
Nov 6, 2019 · Updated on November 06, 2019. The cell nucleus is a membrane-bound structure that contains a cell's hereditary information and controls its growth and reproduction. It is the command center of a eukaryotic cell and is usually the most notable cell organelle in both size and function.
The nucleus (plural, nuclei) houses the cell’s genetic material, or DNA, and is also the site of synthesis for ribosomes, the cellular machines that assemble proteins. Inside the nucleus, chromatin (DNA wrapped around proteins, described further below) is stored in a gel-like substance called nucleoplasm.
NUCLEUS definition: 1. the central part of an atom, usually made up of protons and neutrons 2. the part of a cell that…. Learn more.
