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SA : Vol (cells)

QuestionAnswer
What is surface area? Refers to the outside area of an object, e.g. it is the area around the. outside of a cell.
What is the surface area to volume ratio? The amount of surface area compared to volume (can be found by dividing SA by Vol). The smaller the object, the larger the SA:Vol.
How does this affect exchange? As a cell grows, its ability to exchange enough materials to support its increasing volume is diminished because the volume increases at a greater rate than the surface area.
Why would a large cell be unable to support itself? A large cell could not support itself because it would not have enough surface to absorb the nutrients required, and remove the wastes produced, for its large volume.
What is volume The amount of 3D space a substance or object occupies.
Created by: 22JCHAL
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