Do plants absorb or release carbon dioxide into the air?
Answer:
I don't know why there is so much contradiction here, but clearly there is. But this is correct. See the references for more detail.
During daylight, plants take in CO2 and release oxygen. The process is driven by light and is called photosynthesis.
"The overall chemical reaction involved in photosynthesis is: 6CO2 + 6H2O (+ light energy) = C6H12O6 + 6O2"
http://biology.clc.uc.edu/courses/bio104...
In darkness they take in O2 and release CO2. The process is called respiration.
"Controlled oxidation in a living cell is called respiration and is shown by this equation:
C6H12O6 + 6 O2 => 6 CO2 + 6 H2O + Energy"
http://extension.oregonstate.edu/mg/bota...
Plants do somewhat more of the first process. That makes them grow larger. And trees that have dropped their leaves in winter can't do photosynthesis and so only do respiration (at a slow rate) when the leaves are gone. Even in daylight.
Plants do both. The net effect of most plants is to convert more carbon dioxide into cellulose and sugars and release oxygen than the other way around.
they do both as you explain. when in sunlight, they photosynthesize a process that takes in CO2 and releases oxygen. They also take in oxygen and release CO2 so when they're not photosynthesizing they end up releasing more CO2 than oxygen. For this reason, people should take plants out of the room at night when sick people are sleeping in there.
they do both. in the daytime they take in air and release carbon dioxide and at night they take in carbon dioxide and release air
absorb carbon dioxide and give off oxygen
co2 is oxygen for plants
plants take in CO2 because it is vital to the processes that create the sugars the plants use as energy. and YES. they DO release oxygen as a biproduct of these processes. and, depending on the type of plant and the climate, some plants only take in CO2 and get rid of the oxygen at night because when they open their stomata (little openings in the leaves) it also lets out a little bit of water, and the plant needs that. this opening of the stomata at night is common among desert plants because the hot climate makes the plant lose water faster so it does this at night when it's cooler.
here's a site that has some info http://www.emc.maricopa.edu/faculty/fara...
and if you want, just google it or head to wikipedia
They absorb carbon dioxide and release oxygen. Trees and shrubs do well adjacent to roads/freeways.
PLANTS ONLY ABSORBS CARBON DIOXIDE THEY DON'T RELEASE CARBON DIOXIDE. WHEN WE HUMANS BREATHE WE GIVE OUT CARBON DIOXIDE INTO YHE AIR THIS CARBON DIOXIDE IS THEN TAKEN IN BY PLANTS TO CARRY OUT PROCESS OF PHOTOSYNTHESIS. IN THIS PROCESS OXYGEN IS MADE AND GIVEN OUT INTO THE AIR FOR HUMANS TO BREATHE IN FRESH AIR AND CARRY OUT THE PROCESS OF RESPIRATION
Actually they do both. During the day, they take in carbon dioxide and release oxygen. At night, they take in oxygen and release carbon dioxide.
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