Understandings:

• Photosynthesis is the production of carbon compounds in cells using light energy.
• Visible light has a range of wavelengths with violet the shortest wavelength and red the longest.
• Chlorophyll absorbs red and blue light most effectively and reflects green light more than other colours.
• Oxygen is produced in photosynthesis from the photolysis of water.
• Energy is needed to produce carbohydrates and other carbon compounds from carbon dioxide.
• Temperature, light intensity and carbon dioxide concentration are possible limiting factors on the rate of photosynthesis.