Which of the following is not required in the synthesis of carbohydrates?
A
CO2
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B
Chlorophyll
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C
Nitrogen
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D
Water
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Solution
The correct option is B Nitrogen In plants, carbohydrates are synthesised in the form of glucose by the process of photosynthesis in the chloroplast using the pigment chlorophyll. Chlorophyll molecules are present in and around the photosystems which are embedded in the thylakoid membranes of chloroplasts. Plants use carbon dioxide and water in presence of sunlight to synthesise glucose and release oxygen. There is no role of nitrogen. Thus the correct answer is option C.