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Demonstrate through an experiment that sunlight and carbon dioxide is necessary for photosynthesis |
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Answer» tion:searchWhat would you like to ask?Experiments on Photosynthesis: CO2 is Necessary for Photosynthesis1226 ViewsShareStudy laterPDFEXPERIMENT TO PROVE THE NECESSITY OF CARBON DIOXIDE IN PHOTOSYNTHESIS - DEFINITIONTo prove the necessity of carbon dioxide in photosynthesis FOLLOWING steps need to doInsert a part of the leaf of a destarched PLANT into a conical flask containing POTASSIUM hydroxide.Potassium hydroxide solution absorbs the carbon dioxide gas from the air present in the glass bottle.Leave the plant sunlight.After few HOURS, perform a starch test to this and another leaf of the same plant.Observation-Leaf exposed to the atmosphere are bluish black.Leaf exposed to KOH does not change to blue-black colourResult- Starch is present in the green part of the leaf.Conclusion- Presence of starch proves that chlorophyll is necessary for photosynthesis as it traps sunlight. |
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