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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normal cells and cancer cells both grow slowly
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cancer cells grow at a faster rate than normal cells
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normal cells grow at a faster rate than cancer cells
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cancer cells and normal cells both grow rapidly
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Detailed explanation-1: -For instance, cancer cells: grow in the absence of signals telling them to grow. Normal cells only grow when they receive such signals. ignore signals that normally tell cells to stop dividing or to die (a process known as programmed cell death, or apoptosis).
Detailed explanation-2: -In cancer, the cells often reproduce very quickly and don’t have a chance to mature. Because the cells aren’t mature, they don’t work properly. And because they divide quicker than usual, there’s a higher chance that they will pick up more mistakes in their genes.
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: -The normal cell loses its ability to divide after certain rounds of cell division. But a cancer cell continues to divide even after endless rounds of cell division. A normal cell has the ability to contact inhibition which inhibits its division after contact with other cells.
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.