Question

What gas is used by plants during photosynthesis? Where does it come from? Where does it enter the plant?

Answer 1

The gas used by plants during photosynthesis is carbon dioxide (CO2). This gas is taken in by plants from the surrounding atmosphere through tiny pores on the surface of their leaves called stomata. The stomata open and close to allow the exchange of gases such as CO2 and oxygen. Once inside the plant, the CO2 is used in photosynthesis along with water and sunlight to produce glucose and oxygen as a byproduct.