Question

1. surface area to volume ratio

small cells diffuse faster.
large cells = slower diffusion.
review questions:
why are small cells more efficient?
what happens to surface area - to - volume ratio as cells grow?

Explanation:

Small cells have a higher surface - area - to - volume ratio. This allows for more efficient exchange of materials (such as nutrients and waste) with the environment through diffusion. As cells grow, their volume increases more rapidly than their surface area, leading to a decrease in the surface - area - to - volume ratio.

Answer:

1. Small cells are more efficient because they have a higher surface - area - to - volume ratio, which enables faster diffusion of substances across the cell membrane for processes like nutrient uptake and waste removal.
2. As cells grow, their surface - area - to - volume ratio decreases because the volume of the cell increases at a faster rate than the surface area.