AP BIOLOGY

Detailed explanation-1: -Smaller cells have a much greater surface area to volume ratio allowing material to diffuse throughout the entire volume of the cell quickly and efficiently.

Detailed explanation-2: -The smaller the cell, the more favorable the ratio of volume to surface area for material exchange with the atmosphere is done by diffusion. Although surface area determines the rate at which nutrients are taken in or excreted, the volume determines how much enters and leaves the cell.

Detailed explanation-3: -The larger a cell gets, the more difficult it is for nutrients and gases to move in and out of the cell. As a cell grows, its volume increases more quickly than its surface area.

Detailed explanation-4: -As a cell gets bigger, it has a difficult time keeping up with taking in the extra nutrients it needs and expelling more waste. In other words, as the cell gets bigger, it has less surface area compared to its size-the surface area to volume ratio of the cell decreases as it gets bigger.