How are caner cells different from non cancerous cells?

Answer 1

Cancer is started by cells that begin reproducing at a very high rate, due to mutation of their DNA. In all cells, there are genes containing DNA that regulate what the cell does. A normal cell reproduces only at the rate that the body needs for normal growth or to replace dead cells. When a normal cell has damage to its DNA, it either repairs the damage or dies. A normal cell dies when it gets old, even if it has never been damaged. If a cell receives just the right (or wrong!) damage to its DNA, the gene that limits the cell's reproduction rate switches off and the gene that would cause the cell to die when old or damaged switches off; the gene that controls the cell's damage-repair mechanism switches off. You now have a cancer cell, a damaged cell which does not try to repair its internal damage, which starts rapidly making copies of its damaged self; worst of all, this damaged cell lives forever as do all of its copies. Because it is so vigorous, it can invade and kill normal cells nearby. Cancer cells can be killed by medical treatment, but at this time only by drastic methods that also kill a lot of normal cells. The damage to a cell's DNA can come from sources such as ionizing radiation or carcinogenic chemicals, or from a simple physical injury such as falling or being hit; or it can come from a random reproduction error when the cell is being formed.

Answer 2

Cancer

A cell is incessantly receiving messages, each from its own genes and from alternative cells. Some tell it to grow and multiply, others tell it to prevent growing and rest, or maybe to die. If there are enough 'grow' messages, future stage of the cell's life starts. in an exceedingly neoplastic cell, the messages to grow could also be altered, or the messages to prevent growing or to die could also be missing. The cell then begins to grow uncontrollably and divide too usually.Every time a traditional cell divides, the ends of its chromosomes become shorter. Once they need worn down, the cell dies and is replaced. Cancer cells cheat this method - they preserve their long chromosomes by regularly adding bits back on. This method permits cancer cells to measure forever.

Answer 3

Cancer cells are cells that grow and divide at an unregulated, quickened pace. Although cancer cells can be quite common in a person they are only malignant when the other cells (particularly natural killer cells) fail to recognize and/or destroy them. In the past a common belief was that cancer cells failed to be recognized and destroyed because of a weakness in the immune system. However, more recent research has shown that the failure to recognize cancer cells is caused by the lack of particular co-stimulated molecules that aid in the way antigens react with lymphocytes.

Answer 4

They have what we call this "switch" where it determines whether they produce cells or rest. When that switch doesn't turn off, the cell keeps reproducing more and more cells, which eventually lead to tumors, which are thousands of cells stacked and crammed into each other. Just by having this happen to one cell causes the cells that shouldn't have been reproduced to keep making more cells as well. There is no known cure or reason to determine how this happens to the cell.

Answer 5

They multipy out of control and become a tumor