Difference between revisions of "Nucleus"
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| − | Nucleus fundamentally means "kernel" or "central core." Nucleus is pronounced NEW-klee-us. The plural is nuclei, pronounced NEW-klee-eye. In science, | + | {{Neuron map|Cell Nucleus}}'''Nucleus''' fundamentally means "kernel" or "central core." Nucleus is pronounced NEW-klee-us. The plural is nuclei, pronounced NEW-klee-eye. In science, this term has five main uses: |
| − | '''In biology,''' the region of a [[eukaryotic cell]] which usually looks dark and round under the microscope. It was identified and given the name long before it was discovered that it contains the [[chromosome]]s, which | + | '''In [[biology]],''' the region of a [[eukaryotic cell]] about 10 - 20 nanometres in diameter which usually looks dark and round under the microscope. It was identified and given the name long before it was discovered that it contains the [[chromosome]]s, which contain the [[cell]]'s [[DNA]].<ref>Wile, Dr. Jay L. ''Exploring Creation With Biology''. Apologia Educational Ministries, Inc. 1998</ref> |
| − | '''In physics,''' the central part of an [[atom]] which contains [[neutron]]s and [[proton]]s. | + | '''In [[physics]],''' the central part of an [[atom]] which contains [[neutron]]s and [[proton]]s. |
| − | '''In astronomy,''' the bright, central part of a [[comet]]; | + | '''In [[astronomy]],''' the bright, central part of a [[galaxy]] or [[comet]]; |
| − | '''In meteorology,''' the tiny grains of dust which induce water vapor to condense out into raindrops or snowflakes; | + | '''In [[meteorology]],''' the tiny grains of dust which induce water vapor to condense out into raindrops or snowflakes; |
| − | '''In medicine,''' some parts of the brain are called nuclei; for example, the ''nucleus caudatus.'' | + | '''In [[medicine]],''' some parts of the brain are called nuclei; for example, the ''nucleus caudatus.'' |
==References== | ==References== | ||
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[[Category:Chemistry]] | [[Category:Chemistry]] | ||
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Latest revision as of 03:10, March 24, 2016
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Nucleus fundamentally means "kernel" or "central core." Nucleus is pronounced NEW-klee-us. The plural is nuclei, pronounced NEW-klee-eye. In science, this term has five main uses:
In biology, the region of a eukaryotic cell about 10 - 20 nanometres in diameter which usually looks dark and round under the microscope. It was identified and given the name long before it was discovered that it contains the chromosomes, which contain the cell's DNA.[1]
In physics, the central part of an atom which contains neutrons and protons.
In astronomy, the bright, central part of a galaxy or comet;
In meteorology, the tiny grains of dust which induce water vapor to condense out into raindrops or snowflakes;
In medicine, some parts of the brain are called nuclei; for example, the nucleus caudatus.
References
- ↑ Wile, Dr. Jay L. Exploring Creation With Biology. Apologia Educational Ministries, Inc. 1998