It is advantageous for cells to be small because they are able to get more nourishment. Their size makes them more efficient at diffusion.
All cells receive nutrients and oxygen via diffusion. As cell size increases, its surface area increases by an exponent of 2 (n2) while its volume increases by an exponent of 3 (n3). Thus as cells increase in size, surface area to volume ratio decreases.
Since cell requirements are governed by its volume and its uptake ability depends on its surface area, the small surface area to volume ratio will lead to the cell being unable to sustain itself as its uptake is too little as compared to its requirements.
Therefore, it is advantageous for cells to be small as this would lead to a large surface area to volume ratio and thus the cell being able to sustain itself.
It is advantageous for cells to be small because they are able to get more nourishment. Their size makes them more efficient at diffusion.
Possibly an optimal diffusion rate of necessary biomolcules requires that cells stay small.
so that we can have lots of them
A warm body allows diffusion to occur. Diffusion allows the cells to stay hydrated, but not overly hydrated.
The small unit would be cells
Not as small as your penis
why can small cells exchange substances more readily than large cells?
With smaller cells, there is a greater surface area.
Small ears don't get scratched by brambles.
For one the cells do not use the water they are transporting. Rigidity of structure, for another reason.
For one the cells do not use the water they are transporting. Rigidity of structure, for another reason.
It is advantageous to give chemotherapy during interphase mitosis. By administering chemo, it will encourage the cells to fail and eventually die off.
Smaller cells work more efficiently because their "supply lines" are short.
The biconcave nature of red blood cells increases their surface area and assists in better oxygen diffusion.
Animal cells have small vacuoles, whereas plant cells have large vacuoles.
It allows for a greater amount of specialisation of cell types. Specialisation is almost always an advantage.
very small
why can small cells exchange substances more readily than large cells?
No, all multicellular organisms have the same size cells.
small cells have a greater surface-to-volume ratio than larger cells.