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Gas Exchange (Flowering plants) (Efficient (Air spaces (Gases move around…
Gas Exchange (Flowering plants)
Diffusion
Use CO2 and produce O2
Respire
Use up O2 and produce CO2-
waste product
Waste products- lost through holes in the STOMATA
Lots of gases moving to and from
Net Exchange (Light intensity)
Respire day and night
Day
Make oxygen
Release oxygen
Use up carbon dioxide
Night (respire like humans)
Take in oxygen
Release carbon dioxide
Efficient
Large surface area
Short distance for gases to move
Air spaces
Gases move around easier
Transpiration
Guard Cells
Change shape and volume