Transport in Plants

• The leaves take in carbon dioxide from the atmosphere, the water along with minerals is absorbed from the soil through the roots.
• Glucose can be used by plants or stored as starch
• Chloroplasts contain pigments such as chlorophyll that absorb light energy to make glucose molecules using carbon dioxide and water
• Guard cells control the opening and closing of stomata
• Stomata are small openings on the undersides of leaves where gases enter and exit the plant
• Stomata are small openings on the undersides of leaves which allow gases (carbon dioxide) into the leaf and oxygen out of the leaf
• Transpiration is the loss of water vapour from plant surfaces
• Water moves up the xylem vessels due to transpiration pulling it upwards
• Transpiration is the loss of water vapour from the surface of the leaf
• Transportation in plants is the process in which substances absorbed in one part of the plant or moved to the other parts of the plant
• Xylem: this tissue forms a tabular passage to transport water and mineral salts from the roots to the aerial parts of the plant.
• 4 types of cells: xylem tracheids, xylem vessels, xylem fibres and xylem parenchyma.