Gas exchange in leaves is vital for photosynthesis (CO2 supply, O2 release), respiration (O2 supply, CO2 release), and maintaining the transpiration stream via water vapor loss.
Gas exchange in leaves is vital for photosynthesis (CO2 supply, O2 release), respiration (O2 supply, CO2 release), and maintaining the transpiration stream via water vapor loss.
| 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; |
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