IGCSE Revision Photosynthesis
This section examines the physiology of photosynthesis and how it
related to agriculture and food production. The value of photosynthesis
as an oxygen producing process is examined and is related to the
maintenance of the composition of the atmosphere.Photosynthesis is a chemical reaction in plants to make food. It only occurs in the presence of light.Word EquationCarbon Dioxide + Waterglucose + oxygenSymbol EquationCO2+ H20 --> C6H12O6+ O2Requirements for PhotosynthesisLight EnergyCO2H20Rate of Photosynthesis- can be measured by how much O2is given off.Limititng Factors- you need all three for photosynthesis to occurLight - Light increases, rate of photosynthesis increases up to a certain pointCO2 -CO2increases, rate of photosynthesis increases up to a certain pointTemperature -...