Answer:Many small cells have more surface area than one large cell. With smaller cells, more surface area is available for oxygen and nutrients to diffuse in and carbon dioxide to diffuse out of the cell. Thus many small cells can take up oxygen and nutrients and release carbon dioxide much more quickly than one large cell.
Cell size is limited by a cell’s surface area to volume ratio. A smaller cell is more effective and transporting materials, including waste products, than a larger cell. Cells come in many different shapes. A cell’s function is determined, in part, by its shape.
Small cell’s have larger ratio of surface area to volume and therefore the rate of diffusion and transport of nutrients across cell surface is faster. When cell’s gets bigger, their ratio of surface area to volume decreases and transport of nutrients become slower. Therefore, small cell’s have better efficient.