Gas Exchange in Plants Quiz

What is the primary process through which gases move in and out of the stomata in plant leaves?

• Facilitated diffusion

• Active transport

• Diffusion

• Osmosis

When is the net gas exchange in plants in favor of photosynthesis?

• During a full moon

• In complete darkness

• When the sun is out

• During the night

Which feature of leaves helps in quick diffusion of gases?

• Large surface area

• Thick cuticle

• Presence of chlorophyll

• Deep roots

What is the role of stomata in plant leaves?

• To absorb nutrients

• To facilitate gas exchange

• To produce energy

• To store water

What color change in the hydrogen carbonate indicator suggests high photosynthesis activity?

• Red

• Purple

• Orange

• Yellow