What does nucleus mean?

Answer

A nucleus represents different things depending on the area of science being studied. In general, the nucleus is the center of an object and its most important part.

The nucleus exists in the fields of biology and physics. In biology, the nucleus represents the center of the cell, enclosed by a membrane, where DNA and genetic material is contained. In physics, the nucleus is the center of an atom containing protons and neutrons. A cell's nucleus is made of nucleoplasm and a nucleoprotein-rich network. Nucleus represents different things in chemistry, astronomy, meteorology, botany, and anatomy. For example, in astronomy, the nucleus refers to the center of the head of a comet or the brightest part of a nebula or galaxy.

Q&A Related to "What does nucleus mean?"
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In biology, the nucleus is the control center of a cell which contains hereditary information. It holds DNA and acts as a "brain" while holding everything that the cell
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(nōō′klē us) n 1. the small, central part of an atom in which the positive electric charge and most of the mass (protons and neutrons) are concentrated. n 2.
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Ask.com Answer for: what does nucleus mean
nu·cle·us
[noo-klee-uhs, nyoo-]
NOUN [PLURAL NU·CLE·I, NU·CLE·US·ES.]
1.
a central part about which other parts are grouped or gathered; core: A few faithful friends formed the nucleus of the club.
2.
Biology a specialized, usually spherical mass of protoplasm encased in a double membrane, and found in most living eukaryotic cells, directing their growth, metabolism, and reproduction, and functioning in the transmission of genic characters.
3.
Physics. the positively charged mass within an atom, composed of neutrons and protons, and possessing most of the mass but occupying only a small fraction of the volume of the atom.
4.
Anatomy a mass of nerve cells in the brain or spinal cord in which nerve fibers form connections.
5.
Meteorology a particle upon which condensation of water vapor occurs to form water drops or ice crystals.
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Bacteria are a member of a large group of unicellular or one-celled microorganisms that lack organelles and an organised nucleus. There can be useful bacteria ...
In any neutrally charged atom, the atomic number tells you how many protons are in the nucleus. The number of protons is also equal to the number of electrons. ...
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