Rinse the leaf with cold water and add drops of iodine solution.ĥ. This removes any chlorophyll and turns the leaf a white colour.Ĥ. Place the tube in an electric water bath and heat till it’s boiling. This stops any further reactions in the leaf.Ģ. After a while you can test the leaves of the plant for the presence of starch:ġ. The soda lime will absorb any carbon dioxide present in the jar. You can prove the need for carbon dioxide in photosynthesis by placing a plant in a sealed bell jar with some soda lime.Limiting factors Affecting the Rate of Photosynthesis At this point, the carbon dioxide is no longer a limiting factor. until you reach a point at which the enzymes required are saturated. At high CO₂ concentration, rate levels off.As you increase the concentration of carbon dioxide (the reactant), the reaction is driven forwards. The higher the CO₂ concentration, the higher the rate until a certain point.Carbon dioxide + water + (light energy) → glucose + oxygen gas.Factors affecting photosynthesis will affect the rate of reaction, will affect the amount of glucose and oxygen produced. The equation for photosynthesis is shown below in words. They all affect the rate of the photosynthetic reaction, but in different ways. Light intensity, carbon dioxide concentration and temperature are limiting factors of photosynthesis. A limiting factor is a condition, that when in shortage, slows down the rate of a reaction. Limiting factors affect the rate of a reaction.Photosynthesis: Limiting Factors Affecting the Rate of Photosynthesis - (GCSE Biology) Limiting factors Affecting the Rate of Photosynthesis Single Factors Affecting Rate of Photosynthesis Chemistry Teacher Resource Edexcel | AQA | OCR.Biology Teacher Resource Edexcel | AQA | OCR | CIE.Booking A-Levels as a Private Candidate.Chemistry Flashcards Edexcel | AQA | OCR | CIE.Biology Flashcards Edexcel | AQA | OCR | CIE.Chemistry Textbook Edexcel | AQA | OCR | CIE.Biology Textbook Edexcel | AQA | OCR | CIE.Physics Weekly Classes Edexcel | AQA | OCR | CIE.Chemistry Weekly Classes Edexcel | AQA | OCR | CIE.Biology Weekly Classes Edexcel | AQA | OCR | CIE.GCSE Physics Flashcards Edexcel | AQA | OCR | CIE.Physics Online Course Edexcel | AQA | OCR | CIE. Chemistry Online Course Edexcel | AQA | OCR | CIE.Biology Online Course Edexcel | AQA | OCR | CIE.
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