FREE ESSAY ON CANCER CELLS

CANCER CELLS

Cancerous cells develop when conditions for cells are favorable, therefore allowing the
divisions to continually occur, never stopping. When this happens, a tissue mass of cells
called a tumor is formed and does not respond to normal controls regarding cell growth.
Cancer cells have the following characteristics: profound changes in the plasma and
membrane cytoplasm, abnormal growth and division weakened capacity for adhesion, and
lethality. The membrane permeability is intensified and some proteins may be altered or
added. Enzyme activities may also change and the cytoskeleton shrinks, causing a chaotic
atmosphere. Controls are lost and cell populations will dramatically increase. New
proteins cause abnormal increases in small blood vessels. Due to the high numbers, the
cells can no longer attach itself to the parent tissue. Unless the cancerous cells are
removed, they will kill the individual.