Definition of cell nucleus Cell nucleus
We found 2 definitions of cell nucleus from 2 different sources.
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What does cell nucleus mean?
WordNet
Noun |
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| cell nucleus - a part of the cell containing DNA and RNA and responsible for growth and reproduction | ||
| nucleus, karyon | ||
| cell organ, cell organelle, organelle a specialized part of a cell; analogous to an organ; "the first organelle to be identified was the nucleus" | ||
| cell (biology) the basic structural and functional unit of all organisms; they may exist as independent units of life (as in monads) or may form colonies or tissues as in higher plants and animals | ||
| pronucleus the nucleus of the ovum or sperm after fertilization but before they fuse to form the nucleus of the zygote | ||
| karyoplasm, nucleoplasm the protoplasm that constitutes the nucleus of a cell | ||
| nucleole, nucleolus a small round body of protein in a cell nucleus; such organelles contain RNA and are involved in protein synthesis | ||
| chromatin, chromatin granule the readily stainable substance of a cell nucleus consisting of DNA and RNA and various proteins; during mitotic division it condenses into chromosomes | ||
| achromatin the part of a cell nucleus that is relatively uncolored by stains or dyes | ||
| linin an obsolete term for the network of viscous material in the cell nucleus on which the chromatin granules were thought to be suspended | ||
| chromosome a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order; "humans have 22 chromosome pairs plus two sex chromosomes" | ||
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Wikipedia 
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A cell nucleus is a part of the cell. The nucleus is small and round. It works as the brain of the cell. It contains genes that have DNA inside it, which are the building blocks of life. The human body contains billions of cells and that means billions of "nuclei" (nuclei is the plural of Nucleus).
An example of a nucleus is an egg yolk. Ostrich eggs have the largest yolks and that means they have the largest nuclei. Some viruses attack the nucleus of a cell to use it to make more viruses.
Some animals (like amoebas) are animals made up of one cell and they reproduce by splitting in half. This means that an amoeba is a "single-celled organism" (living thing). Many bacteria are single-celled organisms.
The Nucleus is part of the cytoplasm it is small and round
