by Dr. Frieda Bahringer MD
Published 3 years ago
Updated 2 years ago
Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. When this happens, the cell must divide into smaller cells with favorable surface area/volume
surface area/volume
The surface-area-to-volume ratio, also called the surface-to-volume ratio and variously denoted sa/vol or SA:V, is the amount of surface area per unit volume of an object or collection of objects.
https://en.wikipedia.org › wiki › Surface-area-to-volume_ratio
Why do smaller cells function better than large cells?
Cells are tiny because smaller things are more efficient. Smallercells carry information more quickly and efficiently thanlargercells. Cells are so small that they can maximize their area-to-volume ratio. Smallercells have a higher ratio, allowing more molecules and ions to be moved across the cell membrane per unit of cytoplasmic volume ...
Why is it necessary for cells to be so small?
Sure, most of the cells are small because they need to transport tiny cargo in the form of proteins or lipids and, most importantly, messages from the nucleus of the cell, which is like the command center, to everywhere inside the cell. Therefore it would take a really long and inconvenient time if they were really large.
Why do body cells have to be so small?
The important point is that the surface area to the volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. That is why cells are so small.
Why do cells have a limit to their size?
Usually they are less than 1 micron (one-millionth of a meter) in diameter (in the case of the bacteria), to more than 100 microns (protozoans). The reason for a specific size limit is because one cell can only increase in length and width to a certain limit.
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