A-Level Biology Specification

AQA 7402

Section 3.1: Surface area to volume ratio

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#3.1.1

The relationship between the size of an organism or structure and its surface area to volume ratio.

#3.1.2

Changes to body shape and the development of systems in larger organisms as adaptations that facilitate exchange as this ratio reduces.

#3.1.3

Students should be able to appreciate the relationship between surface area to volume ratio and metabolic rate.