Is light necessary for photosynthesis? Describe an experiment to prove it. Interpret your result.
Answers
Answer:
Light provides energy for the synthesis of glucose from carbon dioxide and water during photosynthesis.
Explanation:
Experiment to show that sunlight is necessary for photosynthesisTo prove the necessity of sunlight in photosynthesis following steps need to do
Take a plant with destarched leaf.Leaf is partially covered with black paper on which a design is cut.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.
Answer:
Light is one of the essential requirements for photosynthesis. The energy contained in solar radiation is absorbed by the photosynthetic pigments and is converted into utilizable chemical energy during photosynthesis.
Explanation:
Experiment to show that sunlight is necessary for photosynthesis
To prove the necessity of sunlight in photosynthesis following steps need to do
Take a plant with destarched leaf.
Leaf is partially covered with black paper on which a design is cut.
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.