Q-32 ---List three events that occure during the process of Photosynthesis
Explain the role of stomata in this process.
(6) Describe an experiment to show that "sunlight is essential
for photosynthesis
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Answer:
(i) Absorption of light energy by chlorophyll. (ii) Conversion of light energy to chemical energy and splitting of water molecules into hydrogen and oxygen. (iii) Reduction of carbon dioxide to carbohydrates. Role of stomata These help in the gaseous exchange between the plant and its atmosphere.
Explanation:
Experiment to show that sunlight is necessary for photosynthesis - definition. 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.
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