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What is destarching? Why is this …

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What is destarching? Why is this step is necessary for performing the experiment light is essential for photosynthesis....

    • Posted by Anagha Siju 3 years, 5 months ago

    CBSE > Class 10 > Science
    • 1 answers

    Yogita Ingle 3 years, 5 months ago

    Destarching occurs in a plant when a part of a plant is "deprived of starch, as by translocation". It is also the process of eliminating starch reserves in a plant for experiments concerning 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.

    1Thank You

    ANSWER
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