CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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True
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False
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Either A or B
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None of the above
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Detailed explanation-1: -Cells tend to continue dividing when they come into contact with other cells. SLOWS DOWN 2. Cell division speeds up when the healing process nears completion.
Detailed explanation-2: -Cells age mostly because they lose a bit of their DNA each time they divide. After around 40 or 50 divisions, they lose too much DNA to keep dividing. They’ve now entered old age. These cells can then continue on doing their jobs or they can die by suicide.
Detailed explanation-3: -One of Gorospe team’s research focus areas is cellular senescence, a natural state of permanent cell cycle arrest reached when cells stop dividing, usually after 50 or so divisions. Cellular senescence was discovered four decades ago, but scientists still don’t fully understand why it happens.