In aerobic respiration in plants, when it is breaking down glucose, where does the CO2 and H2O go?
Feb.12, 2010 in
Aerobic Respiration
When a plant breaks down glucose in aerobic respiration, it takes glucose and oxygen molecules and breaks it down to CO2, H2O and ATP. I was just wondering, where does the CO2 and H2O go? Back into the atmosphere? Is the water transpired through the leaves? Or does the plant keep the water and just give off the CO2?
February 12th, 2010 at 7:18 am
6CO2 + 6H2O → C6H12O6+ 6O2 (g)
this is the chemical formula for photosynthesis. a plant combines six carbon dioxide molicules and six water molecules to form one glucose molecule and six oxygen molecules. When the plant takes in the CO2 and H2O it doesn not release them back…it transforms them into two new molecules.
hope this helps
February 12th, 2010 at 8:16 am
Back into the atmosphere.
During the night, plants burn carbohydrates for energy just as animals do. Because they don’t use this energy to move like animals can, plants don’t need lungs. Oxygen simply diffuses into the leaves through tiny pores. Water is constantly leaving the plant as it is drawn up from the roots and it passes out of the leaves. Plants have very low metabolisms compared to animals, and the water and carbon dioxide they generate is very small. Plants use most of the energy they capture from the sun to construct cellulose to support themselves, and rely on animals and decomposing micro organisms to provide the carbon dioxide required to make sugars. Animals in turn rely on the oxygen plants make to be able to metabolize plant material back into carbon dioxide.
February 12th, 2010 at 9:01 am
They perform all that process under the sunlight time by the effect of the ultraviolet light when break down the molecule of glucose.
The CO2 and H2O go to the atmosphere in the form of vapor, both the gas and the water leave the plant through small orifices in the leaves.
February 12th, 2010 at 9:52 am
Some of the CO2 is released through the lenti cells and stomata while some is used in photosyntesis. the water is used in the metabolic prosesses