Explain why interphase are removed from cell division

 

CELL DIVISION 

is the process of division of mother cells to two or more daughter cells. In one term Cell Division is referred to as multiplication of cells to develop new organ or replaced the previous organ. The Development of sex cell, The growth young animal and plant also include multiplication.

 In order for cell to multiply or produce from two mother cell to two daughter cell, from two daughter cell to four daughter cell from four daughter cell to eight daughter cells and so on.  

The word division is misleading in some ways because it implies that the process always involves halving the cell and its contents. In fact we now know that cell division is accompanied or preceded by the formation of new cell components so that the products of cell division, the daughter cells, are essentially similar to the parent cell. Understanding cell division is largely a question of appreciating how this uniformity is preserved. 

In any description of cell division the chromosomes occupy a central position. As the vehicles of heredity, they determine the characteristics of the cell and its progeny, and it is essential that they should be correctly distributed between the daughter cells.  

TYPES OF CELL ll DIVISION

They are two type of cell division namely: 

1. Meosis 

2. Mitotsis 

The both undergo multiplication of the cells but, Mitosis is more complex, i.e it include the development of sex cell. and Mitosis is the lighter one, it contribute to growth and replacement. 

 

INTERPHASE

Popularly known as the resting stage, Ready stage and so on.  

During interphase the cell has the same appearance as any non-dividing cell. The chromosomes are not visible as distinct bodies either under the light microscope or the electron microscope. At this stage they are strung out in the form of long chromatin threads swollen at intervals into visible chromatin granules. Not until prophase do the chromatin threads condense to form visible chromosomes.

To describe interphase as a resting stage is a complete misnomer. Far from being inactive the cell is growing and preparing for division. During interphase two things happen, both of which are essential if the cell is to divide.

Firstly, the genetic material (DNA) replicates, i.e. doubles itself, so that sufficient DNA is made available for each of the two daughter cells. A cell never divides until this new genetic material has been formed. Secondly, the cell builds up a sufficiently large store of energy, a kind of 'energy reservoir', to carry the process through. That this accumulation of energy takes place during interphase rather than during division itself can be shown by inhibiting respiration at different stages in mitosis. If a cell is treated with a metabolic poison such as cyanide during interphase, mitosis fails to take place. On the other hand if the cell is treated with poison after mitosis has started, the process will still go through to completion.