The cell is the basic unit of life and the smallest structure that can perform all life functions. Every living organism is made of one or more cells.
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Why is the nucleus called the control center of the cell?
The nucleus contains DNA which carries instructions for making proteins and controlling all cell activities. It regulates what the cell does and when it divides.
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Can you see a cell with your naked eye?
Most cells are too small to see without a microscope. A typical cell is about 10 to 100 micrometers in size. You need a magnification of at least 400x to see most cells clearly.
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How many cells does a human body have?
An adult human body has approximately 37.2 trillion cells. These cells are constantly dying and being replaced by new ones throughout your life.
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