What are the raw materials used during photosynthesis? Explain the role of each material.
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Answer:
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Explanation:
Following raw materials are used by plants to carry the process of photosynthesis:
(i) Carbon dioxide gas: This gas is released into the atmosphere during respiration which is then utilised by the autotrophic plants which enters the leaf through the stomata present on its surface during the process of photosynthesis.
(ii) Chlorophyll: It is a green pigment in plants, which acts as a catalyst. It is responsible for absorption of the sun’s energy by the plant. The chlorophyll pigments are photoreceptor molecules which play a key role in the photosynthetic process. The different types of chlorophyll molecules are chlorophyll a, b, c, d, e and bacteriochlorophyll; of which chlorophyll a and b are the most common.
(iii) Light: Light energy is absorbed by chlorophyll to convert carbon dioxide and water into carbohydrates. An increased light intensity leads to a high rate of photosynthesis and a low light intensity would mean low rate of photosynthesis.
(iv) Water: Water from under the earth, is transported upward through xylem tissues to the leaves, from where it reaches the photosynthetic cells. This water then splits in the presence of sunlight and chlorophyll.
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Answer:
The raw of photosynthesis,Water and carbon dioxide enter the cells of the leaf and the products of photosynthesis sugar and oxygen leave the leaf water enters the root and is transported up to the leaves through specialized plant cells know ad xylem vessels
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