Cool Why Must Cells Be Small 2023. Web brooklyn college explains that cells are small because they must have a large surface area relative to the amount of volume they contain to function properly. Measure the length, width and height of each cube using a ruler;.

1 become a study.com member to unlock this answer! Measure the length, width and height of each cube using a ruler;. This is because when you have a lot of small objects vs a few big objects the surface.