do plants use oxygen or do they just make it and then release it out into the air.
do plants need carbon dioxide
they make oxygen using carbon dioxide :)
plants need oxygen for respiration so some of the oxygen produced in photosynthesis is used for that, while the rest is excreted through the stomata.
and carbon dioxide is used to make glucose, with oxygen as the byproduct.
c02 + water ----> (using chlorophyll and light) glucose + oxygen
6CO2 + 6H2O ----> 6CO2 + C6H12O6 (formula of glucose)
no CARBON DIOXIDE is breathed in, photosynthesis occurs, oxygen is PRODUCED and used in respiration with some being released into the air haha :P