Photosynthesis. 3.5 / 5 based on 2 ratings ? BiologyPhotosynthesis and transpirationGCSEAQA Created by: Victoria Caldridge.Created on: 23-04-13 10:00 What is the equation for photosynthesis? carbon dioxide + water --> glucose + oxygen. 1 of 10 What is the essential catalyst for photosynthesis? Light. 2 of 10 Why are leaves green? The chlorophyll in the leaves reflects green light, but absorbs the others. 3 of 10 What role does chlorophyll play in photosynthesis? It traps the sunlight energy. 4 of 10 How can you test for photosynthesis in a land plant? Use iodine to test for starch in the leaf. 5 of 10 Which factors limit photosynthesis? Temperature, light intensity and concentration of carbon dioxide. 6 of 10 Why does increasing the temperature eventually halt photosynthesis? The enzymes which make the reaction possible denature. 7 of 10 What happens to the glucose produced during photosynthesis? It is used to respiration, or converted to fats or glucose or starch, or it is used to form cellulose. 8 of 10 What is the standard level of carbon dioxide in the atmosphere? 0.04%. 9 of 10 What are three ways of increasing the level of carbon dioxide in the atmosphere? Propane burners, flue gases and liquid carbon dioxide. 10 of 10
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