Describe an experiment to show that sunlight is essential for photosynthesis.
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sunlight is essential for photosynrhesis
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Answer:EXPERIMENT TO SHOW THAT SUNLIGHT IS NECESSARY FOR PHOTOSYNTHESIS - DEFINITION
To prove the necessity of sunlight in photosynthesis following steps need to do
1.Take a plant with destarched leaf.
2.Leaf is partially covered with black paper on which a design is cut.
3.Expose this plant to sunlight for few hours and perform a starch test with iodine solution.
Observation- Covered leaf part shows brown colouration.
Exposed leaf shows blue-black colour.
Result- Starch is present in the exposed leaf.
Conclusion- Leaf exposed to sunlight give iodine test, proving that sunlight is necessary for photosynthesis.
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