Why Do Plants Take In Oxygen And Give Out Co2 At Night?

During daylight, plants are undergoing a process known as photosynthesis. In that the plants take up carbon dioxide and in the presence of light use it to manufacture sugars. From these sugars they can manufacture all other organic molecules. A by-product, actually more a waste product, of this reaction is oxygen, which is released by plants.

Now, consider this. All living things need to respire and the general equation for respiration says that glucose and oxygen give carbon dioxide and water. Plants are also living and do respire. Only at day time, they have sunlight and drive their energies into making food for themselves from carbon dioxide. At night, there is no sun. So, photosynthesis cannot work. However, the plants do have to respire. So, they do just that and we see that at night they are taking in oxygen and giving off carbon dioxide just like us!

During day time plants needs food for survival as we all do so they take co2 for making food and thus this process known as photosynthesis and this they inhale co2 and exhale o2 .........................they are also a living thing and they also need o2 for respiration so they do same work as we do all the time take o2 and exhale co2

Because it just does. So deal with it.

Take In Oxygen And Give Out Co2