Question

What will happen if plant leaves are devoid of stomata?

Answer 1

There will be no gas exchange. No carbon dioxide will move into the plant and there will not be any photosynthesis. 

There will be no transpiration. Transpiration helps in cooling of the plant. The plant may get burnt by heat. 

No transpiration = no water moving up the plant by transpiration pull. The leaves wont get water and won't photosynthesis. 

There will be no respiration at night ( as no gas exchange will take place)

Answer 2

Answer:Diffusion occurs when the spontaneous net movement of particles or molecules spreads them from an area of high concentration to an area of low concentration through a semipermeable membrane

Osmosis is the movement of water molecules from an area of high water concentration (weak/dilute solution) to an area of low water concentration (strong/concentrated solution) through a partially permeable membrane.