Oxygen liberated during photosynthesis comes from (a) water (b) chlorophyll (c) carbon dioxide (d) glucose
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Answer: (1) Water
Chemical energy is collected in the form of sugars, that are derived from water and carbon dioxide. During photosynthesis, water molecule splits to produce Oxygen and Hydrogen Ions. Oxygen is expelled out of plants and Hydrogen is used to reduce Carbon dioxide to produce carbohydrates.
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water.
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