Why does cell division at unicellulars prolong life?

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mr02077
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Why does cell division at unicellulars prolong life?

Post by mr02077 » Fri Apr 26, 2019 5:44 pm

Why would cell division be a mean that prolongs life of a unicellular?

In many encyclopedias you can read life is mortal due to multiple reasons (mutations in nuclear and mitochondrial DNA, DNA methylation, shortening of telomeres, accumulation of waste material and free radicals). All those negative impacts are accumulated in a cell mass that is to divide, so from my standpoint, division would be just splitting in two material that would be equally close to death in the life path, as it was before the division.

I do not see what is rejuvenating in cell division, as we here talk about mitosis of unicellulars (almost no gene recombination to revitalize the gene pool and it is not like cell multiplication in multicellulars that obviously helps to regenerate tissues)

Thank you for spending time to give your input !

brittneysmith
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Re: Why does cell division at unicellulars prolong life?

Post by brittneysmith » Wed Aug 21, 2019 7:45 pm

The cell cycle is the process by which a cell replicates its genetic material and synthesized the other elements of the cell and at the end divided into two daughter cells is known as Cell cycle”
Cell Division:
Cell division is a very noteworthy process in all living organisms. During the division of each cell, DNA of the cell replicate and after this growth of the cell takes place. In the cell, all these processes must be performed in a well-harmonized way by ensuring correct division and formation of the progeny of the cells containing unchanged genomes.

Bondbuzz
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Re: Why does cell division at unicellulars prolong life?

Post by Bondbuzz » Sat Aug 31, 2019 6:22 am

There are many reasons for the division of cells as cells divide to replace old, dead or damaged cells. Cells divide so that living things can grow. Organisms grow not because cells are getting larger but because cells are dividing to produce more and more cells. In the human body, about two trillion cells divide every day. In cell division, the cell that is dividing is called the ‘parent’ cell. Parent cell divides into daughter cells and this process is repeated known as the cell cycle. There are three ways for a cell to divide depending upon its type of cell- Amitosis, Mitosis, and Meiosis. Each of these methods of cell division has special characteristics.

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