The job of a nucleus is to be the control center of the cell. The nucleus in a human cell has fourty-six chromosomes. This stores the instruction of the cell's activity. The nucleus has a membrane called a nuclear envelope. The nucleus is like a vault. It contains the cell's DNA.

The nucleus is the most obvious structure in the general cell.

One way the nucleus directs the cell's activities is by sending instructions to the ribosomes. This is where the proteins are put together

The nuclus is a section of a eukaryotic cell which has chromosomes and controls the structure and function of the cell. Prokaryotic cells do not contain a nucleus. The

nucleus appears to be large, and circular. It is usually in the center of the cell, but in a plant cell because of the large vecuole, it is more to the side. It is colorless, clear,

and more dense than cytoplasm

What makes up a nucleus:

• A thin nuclear membrane-allow direct communication between nuclear content and cytoplasm through the pores.
• Liqid material in the nucleus-nucleoplasm
• The nucleolus
• The chromatin network is formed from tangled threads of chromotin(DNA)

Nucleus' functions:

• Contolling center
• Hereditary characteristics
• Controls cell division

Links:

Home- http://sun.menloschool.org/~cweaver/cells/index.html

Organelle link(ribosomes)-http://sun.menloschool.org/~cweaver/cells/e/ribosomes

Sources used:

Internet-

http://www.botony.uwc.ac.za/SCI_ED/std8/cells/nucleus.htm.11 February.2000

http://gened.emc.maricopa.edu/bio/bio181/BIOBK/BioBookCELL2.html.14 February.2000

http://www.ultranet.com/~jkimball/BiologyPages/A/AnimalCells.html.14 February.2000

Handout we got in class 2-4 The ANATOMY OF THE CELL