CELL STRUCTURES AND FUNCTION
CELL CYCLE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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the stage of the cell cycle
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the ratio of cell surface area to volume
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the number of mitochondria in the cell
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the size of the organism
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Detailed explanation-1: -The single factor that limits the size of most of the cell is the surface volume ratio.
Detailed explanation-2: -What Limits Cell Size? Cell size is limited by the surface area to volume ratio of the cell. As the volume of a cell increases, it becomes harder to efficiently transport materials in and out of the cell.
Detailed explanation-3: -What limits cell sizes and growth rates? Cell growth is limited by rates of protein synthesis, by the folding rates of its slowest proteins, and-for large cells-by the rates of its protein diffusion.
Detailed explanation-4: -Smaller cells have a much greater surface area to volume ratio allowing material to diffuse throughout the entire volume of the cell quickly and efficiently.
Detailed explanation-5: -A cell must have enough surface area to bring in nutrients and export wastes from its entire volume. However, the ratio of surface area to volume decreases as a cell becomes larger. This places a limit on the largest size that a cell can be.