why do cells die?

Question

If nothing is wrong with a cell and nothing attacks it or kills it off like poison why then does the cell die. Cells are made to make exact copies of them selves so there should not be an end of the copies unless they are programmed to die. If they are programmed to die then why do cancer cells never die and only reproduce repeatedly?

Answer 1

DNA replication in cells is not 100% accurate - so mistakes do creep in, and eventually enough mistakes will mean the cell cannot make the right functional proteins, so it will die (or possibly, it will become cancerous).

Another issue is the telomeres of your chromosomes. Due to the way in which DNA replication works, a small bit gets missed out each time a chromosome is copied. These bits, which are at the ends of the chromosomes, are called telomeres, and are mostly "junk DNA" - so the missing bits are not anything important. However, after enough divisions, the telomeres are exhausted, and the missing bits start to eat into genes. So once again, the cell will become misfunctional and will die.
Some cells (noteably your germ cells, but also adult stem cells) have an enzyme called telomerase, which repairs the telomeres as they are eaten away - so they *can* live "forever".

Answer 2

Why Cells Die

Answer 3

Cells die for a technique of motives, lots of that are literally not planned. for instance, cells can starve to demise, asphyxiate, or die from trauma. Cells that keep up some style of damage, which includes DNA alteration or viral an infection, many times undergo programmed cellular demise. This procedure receives rid of cells with a probably deadly mutation or limits the spread of the virus. Programmed cellular demise is also a common component to embryonic progression. Frogs undergo cellular demise that consequences contained in the eliminating of tissues, permitting a tadpole to morph into an adult frog.

Answer 4

Cancer cells die, just like our normal cells. But what aids the cancer cells is its regeneration. It keeps regenerating more copies of itself at a much higher rate than our normal cells do. And for every cancer cell that dies, more will replace it. That's why cancer cells multiply and form unwanted growth in our body.

Answer 5

Cells do not make "exact" copies of themselves. Little errors creep in. Cancer cells themselves are errors, but in the direction of very rapid reproduction of themselves instead of a sustainable reproduction rate.

Answer 6

cells in body need to repair and reproduce, cells here do not die the split into two
interphase do normal function
mitosis cells splits into two
a tumor is a cell that does not die, mistake
cells in heart and eyes to not die

Answer 7

All cells will eventually die. even cancer cells

The question is, why isn't it regenerating.

the answer is, there is an information in our DNA, that called "suicide gene". it makes eventually the cells don't regenerate any more

CMIIW

Answer 8

well you know that germs and Clorox wipes kill 99.99 % germs well if you never was you hand but use germx that 1 germ will never go away and it will grow and grow that makes a supper germ and you cells die some how

Answer 9

I don't know what to tell you!!!