3.3.1 surface area to volume ratio Flashcards
1
Q
which increases at a larger rate (SA or V)
A
volume increases at a larger rate to SA
2
Q
when a organism gets bigger does the SA:V decrease or increase?
A
the SA:V decreases
3
Q
is the artery oxygenated or deoxygenated?
A
deoxygenated blood
4
Q
is the pulmonary artery oxygenated or deoxygenated?
A
oxygenated blood
5
Q
what are the characteristics of alveolus?
A
1cm cell wall thick
large surface area
short diffusion pathways
concentration gradient
6
Q
what is the equation for surface area?
A
surface area = height x width
7
Q
diffusion equation
A
surface area x difference in concentration / length of diffusion path
