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cells size

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1. Most cells are very small. What physical and metabolic contraints limit cell size?
2. What problems would an enormous cell encounter?
3. What adaptions might help a very large cell to survive?

These areas are briefly explored.

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One of the main reasons cells are small is due to the surface area/volume constraint. Consider a ball. As it expands, its surface area expands at a slower rate than its volume. (You can check out the mathematics of that by looking at the volume of a sphere versus the surface area of a sphere.) In other words, as it expands its surface area/volume ratio gets smaller and smaller. Therefore, to have the largest surface area/volume ratio, the cells should be as small as ...

Solution Summary

Cell size is justified.

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