CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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They ignore the normal checkpoints that regulate the cell’s cycle.
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They divide too often, creating more cells with mutated DNA.
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They do not go through apoptosis, or cell death, when they are supposed to.
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They may not stay anchored in place and can move throughout the body.
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They engulf other cells by a process called phagocytosis.
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Detailed explanation-1: -Normal cells follow a typical cycle: They grow, divide and die. Cancer cells, on the other hand, don’t follow this cycle. Instead of dying, they multiply and continue to reproduce other abnormal cells. These cells can invade body parts, such as the breast, liver, lungs and pancreas.
Detailed explanation-2: -Gene mutations in cancer cells interfere with the normal instructions in a cell and can cause it to grow out of control or not die when it should. A cancer can continue to grow because cancer cells act differently than normal cells. Cancer cells are different from normal cells because they: divide out of control.
Detailed explanation-3: -The major differences between normal cells and cancer cells relate to growth, communication, cell repair and death, “stickiness” and spread, appearance, maturation, evasion of the immune system, function and blood supply.
Detailed explanation-4: -Cancer cells behave differently than normal cells in the body. Many of these differences are related to cell division behavior. For example, cancer cells can multiply in culture (outside of the body in a dish) without any growth factors, or growth-stimulating protein signals, being added.
Detailed explanation-5: -What is the difference between normal cells and cancer cells in terms of growth? Normal cells stop reproducing once enough cells are present; cancer cells reproduce uncontrollably, even when there are enough cells. Cancerous cells also have too many growth factors (chemicals that tell cells to grow and divide).