Gaseous Exchange in Plant

Parts of plants that provide a large surface area for gaseous exchange

• Leaves

• Stens

• Roots

• Flowers

• Fruits

Plan taking in oxygen and giving out Carbon dioxide

• During the day

• During the night

Structure in leaves that allows gases to diffuse in and out of plant cells

Stoma is bounded by a pair of...

Stomata of plants closed when

• Photosynthesis occur

• Presence of light

• No lights at the surrounding

• Plant loses a lot of water

Explain osmosis

During the night

• Photosynthesis does not occur

• Water diffuse out of the cell

• Guard cells lose turgidity

• Stoma closes

Effects of pollutants from factories and vehicles

What did you see in the diagram

Effects of haze and dust on the survival of plants

• Reduce sunlight intensity

• Reduce rate of photosynthesis

• Stoma clogged with dust

• Increase acidity