exchange of substances with environment 3.3 Flashcards
aqa as level biology
1
Q
why is surface area to volume ratio so important?
A
the relationship between the size of an organism and its surface area to volume ratio play an important role in the type of adaptations it will have
2
Q
why do small organisms only have single exchange surfaces?
A
small organisms have very large surface compared to volume so big enough surface for exchange and a small distance to reach middle of it
3
Q
what is breathing?
A
movement of air in and out of lungs
4
Q
what is ventilation?
A
scientific word for breathing
5
Q
what is respiration?
A
chemical reaction to release energy in the form of ATP
