3.1.1 Surface Area to Volume Ratio Flashcards
1
Q
What does surface area refer to?
A
The total area of the organism that is exposed to the external environment.
2
Q
What happens as the surface area or volume of an organism increases?
A
The surface area to volume ratio decreases.
3
Q
How do you work out the surface area to volume ratio?
A
Work out each value individually, then put one into the ratio of 1 and determine the other value.
4
Q
Why does the SA : V ratio decrease as the surface area or volume of an organism increases.
A
Volume increases much more rapidly than surface area as size increases.
