Gaseous exchange in humans takes place in the lungs. Where does it take place in a plant?

Gaseous exchange in plants are through the leaves.

Gas exchange occurs in plants through tiny pores called stomata, which are found on the leaves. Carbon dioxide enters the plant through the stomata, and oxygen is released

Leaves, mostly through pores in the underside of a leaf.

Uhm?? I think that is the atmosphere, it’s the oxygen we breathe in, is it the leaves? As the leaf produce oxygen for us.