how do plants use carbon dioxide?

Answer 1

Carbon dioxide is used by plants in photosynthesis in order to make glucose, the simplest form of their food. Photosynthesis basically takes water and carbon dioxide, and sunlight, and changes it into food (glucose). CO2 provides the carbons in glucose, and the reaction, in a simple form, is this:

6CO2+6H20+Sunlight ==> C6H12O6 (glucose) + 6O2

Terrestrial plants take carbon dioxide from teh air through openings on the bottom of their leaves called stomata, and aquatic plants take up bicarbonate HCO3- as their source of CO2.

Edit: Transpiration is NOT the reverse process of photosynthesis. Transpiration is the evaporation of water through the stomata, and while it does cool the plant and release moisture, that is not it's main purpose. In fact, the release of water is detrimental to many terrestrial plants, especially living in dry areas, like deserts, and so plants have to have evolutionary adaptions which minimize transpiration, such as the C4 plants or CAM plants. What transpiration does do however, is help pull the water up the plant in the xylem. To put it simply, transpiration just helps water get up the plant from the roots and into the leaves

And zachary c, your equation is not balanced correctly. It's 6-6-1-6. And technically the product of photosynthesis is not glucose but a sugar called glyceraldehyde-3-phosphate (G3P), and this happens thousands of times a second

Answer 2

That is an absolutely huge question! Rather than write a novel for you, I've provided a couple resources below.

In summary, they use it via photosynthesis, a chemical process through which plants exchange Oxygen for Carbon Dioxide utilizing sunlight and nutrients to facilitate the exchange. Trees, for example, circulate water and nutrients from the soil (picked up in the roots) up into the tree where the leaves or needles facilitate the exchange of carbon for oxygen.

There is also another way they use it, in reverse, called transpiration. This is like "sweating" for the tree, as it releases moisture as well.

Answer 3

wtf is this Ashley Hawes? it takes 6 Carbon dioxide atoms (CO2) and combines them with 12 water atoms (H2O) in a chemical reaction caused by light and they make C6H12O6 (glucose) also in the process 6 oxygen molecules and 6 water molecules are created with the left over atoms. but thats jus to make one molecule of glucose many of them are made at once

Answer 4

they take it in to make food and give off oxygen

Answer 5

photosynthesis for food