iin Adlaphon
DiyENiON3not UNTTs maiss orfams Cteperal madels are sivaluaded -qualitahively
to gradient Parkal pressure: concentiahion of differint gassls in a mixture atmo2phenc piessurz- total presure cf air inhaled by air-brec(hin) animals Sea leveLs 760 mm Hcy 20.g x 7lO :1S9 mmtg 100
7ugi5nyjpyo mj 5 13y v} Q= OA P-Pz 1
Q: Diffusion rate (f(vx)
regslanu?
A :surfaca aLa (part ot resistunu) L : path Lengte (risiglanu)
O availability b with eleyahon O, is 20,9% af all elevahons Total amdont of gas VJas go aigher per volumi
Diffusion of O, acposs geus trchange Suflu olpend ancl inb lin Pg,in elevation V O, uptake. LO,i last by diffusim Co is0.dlaic-> large pcuhal presure gracientfrom bool envinonment
dops not ckange huh
2 f|ux prOblem9:
High ind : inviroment Low end. body fu'd tanu?] Highend: body tow ead, envinoment Po, a} Sea levz]: IS9 mnHg >10,127mm Hg iD meters LrderWater z IS2O mmHg 7Po, 317.68
80 x 76Oa 6O8mnl Oal
F(at,thin bocly wth large external surfau area (Lacge A) 4. At sea level: L) tasier to ixchange O, beavse P, (anuioment) i lichur thon P(boxy &luccl? No problem wiftu xxchanging tQ, as R(hody) is eighcr Han P,(enuninment) At tlvation:
Hhan HaF af sea leval No clange in CO, exc&ancy hecausk Pco, is almost rim Lotl-sea level and aevah