cell division
- Created by: GraceYoung
- Created on: 21-08-18 15:52
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- cell division
- mitosis
- mitosis is a type of cell division that takes place in stages
- happens in body cells which are any cell except those that produce gametes (sex cells).
- the cell that is dividing is called the parent cell and the two new cell created are called daughter cells
- the daughter cells are identical to the parent cell
- mitosis is used for growth, repair and asexual reproduction.
- uncontrolled cell division
- cancer cells divide uncontrollably by mitosis to form a tumor.
- cells usually stop dividing when growth has finished except when repair is needed.
- sometimes the control that tells cells to stop dividing goes wrong which leads to cancer
- growth in animals
- in animals a fertilised egg or zygote divides by mitosis to produce genetically identical daughter cells.
- these cells grow by mitosis and eventually differentiate into different types of cells to make up a whole organism
- Differentiation creates specialised cells adapted to carry out a particular function
- growth in plants
- plant cells divide by mitosis just behind the tips of shoots and roots
- after this the cells grow by enlarging
- young cells have small vacuoles which take in water by osmosis and enlarge causing the cells to elongate
- mitosis
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