Wednesday, March 19, 2014

Programmed Cell Death


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Programmed Cell Death is where cells literally destroy themselves and this is actually controlled by nuclear genes.The DNA firstly would break into tiny segments and then the nucleus would finally break down which then results in the cell shrinking and then breaking up, this then plays an important part of being able to maintain the healthy life of organisms.


There are two types of cells death which are commonly known as Cell I and Cell II. A Apoptosis is a cell I death and a Autophagic is a cell II death. Cells that are found in plants undergo processes of cell death although some of the common factors of cell death are conserved in plants.


There are indeed many factors that actually would cause a cell to die and these include a decreased workload, low nutrition, sensitivity and also increase in blood supply are just some of these known factors for resulting in Programmed Cell Death.

This was first brought about back in 1964 by Lockshin and Williams and this has become very popular for research interventions. This has been optimized with the award back in 2002 for being awarded the Nobel Prize for Medicine. In this procedure instead of having an immune system to back it up it has substances that helps to break itself down and then puts it into a vacuole which then tears when the cells die.

In plants especially the stalk of the plant has many dead cells which have actually gone through the process of Programmed Cell Death although there is no appearance of DNA fragmentation the main aim of the residues that have been left behind from the dead cells has no PCD in these plant tissues.


Many of the biologists therefore believe that mitochondria which has come from bacteria which therefore brought together endosymbionts and it was therefore in 1967  that Lynn Marqulis. Many cells are able to respond to different specific molecules and without this then would go through cell death.


You may ask why do these actual cells die? Well there are numerous answers to this question but relatively speaking the majority of them die because of either trauma or they starve to death. Some cells that actually develop an infection of some sort frequently develope Programmed Cell Death.

This then has the power of taking away cells which then omits the spreading of the virus infection Frogs are a good example of this where a tadpole is able to further develop into a fully grown frog.


All living things live off of light and this then travels in forms of lengths and this is shown in the same procedure when we talk about Programmed Cell Death by removing cells that have been damaged we are eliminating the disease to spread further and cause virus infections by removing the source of infection in the first place.


The talk of cell death has been around for many, many years although much of the functions are relatively the same the technology and study has changed dramatically over the years.

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