Cell division
The basic structure of most animal and plants cells is shown below.
All cells are produced from other cells by the process of cell division. Cell division occurs when one cell divides to produce two new cells. Unicellular organisms use cell division to reproduce.
Multicellular organisms use cell division for growth and repair of damage such as wounds.
The new cells produced by cell division are genetically identical to the parent cell because they each receive a copy of all the The structure made of DNA that codes for all the characteristics of an organism. it has in its nucleus.
Sometimes the cells in part of a multicellular organism divide uncontrollably. The result is a large mass of cells called a The lump of cells formed as a result of uncontrolled cell division.. If tumour cells successfully invade other tissues in the body the result is A disease caused by normal cells changing so that they grow and divide in an uncontrolled way. The uncontrolled growth causes a lump called a tumour to form..
