Question

Why is gaseous exchange important in the leaf?

Accepted Answer

most photosynthesis occurs in palisade mesophyll;

requires a good supply of carbon dioxide from atmosphere;

and surplus oxygen must be released to the atmosphere;

ref to O2 /CO2 exchange for respiration;

ref to water vapour loss maintaining transpiration stream;

Front	Why is gaseous exchange important in the leaf?
Back	most photosynthesis occurs in palisade mesophyll; requires a good supply of carbon dioxide from atmosphere; and surplus oxygen must be released to the atmosphere; ref to O2 /CO2 exchange for respiration; ref to water vapour loss maintaining transpiration stream;

Exchange Atmosphere Ref Gaseous Important Leaf Photosynthesis Occurs