Cells show a great variation in their stape. They may be spherical, rounded, elongated, cuboidal, cylindrical, tubular, discoidal or irregular.They shape of cells is often related to the different functions they perform.Therefore, it is related to its function.
The size of the cells are small. The smallness of cell provides more surface area per unit volume.With an increase in size, this ratio gradually decreases. Thus, larger the surface area of the cell in relation to its volume causes greater diffusion.Therefore, it is related to its function.
hope helped u :))