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mikaylamosley12

  • 2 years ago

what does a nucleus do

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  1. andijo76
    • 2 years ago
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    i dont know if this will help

  2. tsithole
    • 2 years ago
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    it controls every fuctions or operations taking place in a cell

  3. Faman39
    • 2 years ago
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    All the cells in an eukaryotic organism have a single nucleus. But there are a few exceptions like the paramecium, a microscopic organism which has two nuclei (plural for nucleus) and some molds which have many nuclei. Interestingly, the human red blood cells do not have a nucleus. The nucleus is spherical in shape and is located in the cytoplasm of the cell. It is separated from the rest of the cell organelles with a nuclear envelope or nuclear membrane. This membrane protects the DNA and other genetic material present inside the nucleus. The nucleus size is measured in microns or micrometers and is approximately 1.7 µm. The main function of this cell organelle is storing the chromatins, which are strands of the DNA and which carry the genes. There are a total of 46 chromosomes in a cell. This cell organelle is also the site for protein synthesis, where the messenger RNA (mRNA) undergo transcription. This process is known as gene expression. Nucleus plays a vital role in the production of ribosomes, which synthesize proteins from amino acids. The ribosomes also convert genetic information obtained from RNA to proteins. These ribosomes are secreted by the nucleolus. The nucleus also acts as a storehouse for genetic information to be transferred, by the process of meiosis (where the number of chromosomes is divided into half), to the coming generations. The metabolism of nutrients and the release of energy in the cells takes place in the nucleus. The cell cycle is controlled by the nucleus and it also takes care of the wear and tear of the genetic material. There is a nuclear pore complex present in the nucleus which helps in transportation of the molecules of protein through the nuclear membrane.

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