Gaseous exchange - Unit 1 Flashcards
1
Q
gaseous exchange definition
A
diffusion of oxygen and carbon dioxide in and out of an organism
2
Q
what is breathing
A
the mechanical process whereby air moves in and out of the lungs
3
Q
what is cellular respiration
A
the gradual release of energy from organic compounds in the presence of O2
4
Q
gaseous exchange surfaces
A
surfaces through which gaseous exchange takes place
5
Q
surface area to volume ratio use?
A
explains why large need complex respiratory surfaces
- as size increases, surface area to volume ration decreases
