OBJECTIVE LIFE SCIENCE
CELL BIOLOGY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Cells grow to be large so that more nutrients can enter and exit the cell membrane
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Cells stop growing and divide to stop information overload
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Cells stop growing and divide so demands on DNA are limited
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As cells grow the DNA contained in the nucleus stays the same
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Detailed explanation-1: -Metabolism is not the result of cell division. Therefore the answer is (3) metabolism.
Detailed explanation-2: -Which of the following does not occur as a cell grows larger and larger in size? (If a cell continues to grow, the ratio of surface area to volume will decrease. This means the cell will have difficulty supplying nutrients and expelling enough waste products. Diffusion across the cell membrane will not be affected.)
Detailed explanation-3: -Why don’t cells just keep getting bigger instead of multiplying? Cells are limited in size because the outside (the plasma membrane) must transport food and oxygen to the inside of the cell. This can be represented by what is known as the surface to volume ratio .