<P> Oocytes can be unusually large cells in species for which embryonic development takes place away from the mother's body . Their large size can be achieved either by pumping in cytosolic components from adjacent cells through cytoplasmic bridges (Drosophila) or by internalization of nutrient storage granules (yolk granules) by endocytosis (frogs). </P> <P> Increases in the size of plant cells are complicated by the fact that almost all plant cells are inside of a solid cell wall . Under the influence of certain plant hormones the cell wall can be remodeled, allowing for increases in cell size that are important for the growth of some plant tissues . </P> <P> Most unicellular organisms are microscopic in size, but there are some giant bacteria and protozoa that are visible to the naked eye . See: Table of cell sizes--Dense populations of a giant sulfur bacterium in Namibian shelf sediments--Large protists of the genus Chaos, closely related to the genus Amoeba </P> <P> In the rod - shaped bacteria E. coli, Caulobacter crescentus and B. subtilis cell size is controlled by a simple mechanisms in which cell division occurs after a constant volume has been added since the previous division . By always growing by the same amount, cells born smaller or larger than average naturally converge to an average size equivalent to the amount added during each generation . </P>

Relate the ratio of surface area to volume to cell growth and cell division