Question

A small cell size presents a larger surface area to volume ratio. What is/are the benefits of the large surface area?

• A. Quick exchange of respiratory gases
• B. All of the above
• C. Ease of repair of any damage to the cell
• D. Efficient nutrient diffusion into the cell

Answer 1

The correct option is B All of the above

The surface area to volume ratio gets smaller as the cell gets larger. Thus, if the cell grows beyond a certain limit, not enough material will be able to cross the membrane fast enough to accommodate the increased cellular volume. So, a small size favours the efficient diffusion of gases and nutrients. In case of any injury, timely repair can be done to prevent the loss.