the rate of photosynthesis

• the three main limiting factors of photosynthesis are light, temperature and carbon dioxide concentration
• chlorophyll is another limiting factor of photosynthesis as it is a pigment that absorbs light
• light provides the energy needed for photosynthesis
• as the light level is raised, the rate of photosynthesis increases steadily up to a certain point, when it no longer is the limiting factor
• increasing the concentration of carbon dioxide in the atmosphere will increase the rate of photosynthesis up to a certain point, after which it will no longer be a limiting factor
• temperature affects the rate of photosynthesis because it affects the enzymes involved
• oxygen production shows the rate of photosynthesis
• light intensity is proportional to 1 / distance squared