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Question Video: Recalling the Correct Word Equation for Photosynthesis Biology

Which of the following equations correctly shows the reactants and products of photosynthesis? [A] Carbon monoxide + water → glucose + oxygen [B] Glucose + oxygen → carbon dioxide + water [C] Carbon dioxide + glucose → oxygen + water [D] Carbon dioxide + water → glucose + oxygen

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Video Transcript

Which of the following equations correctly shows the reactants and products of photosynthesis? (A) Carbon monoxide plus water forms glucose plus oxygen. (B) Glucose plus oxygen forms carbon dioxide plus water. (C) Carbon dioxide plus glucose forms oxygen plus water. Or (D) carbon dioxide plus water forms glucose plus oxygen.

Unlike animals, most plants make their own food through a process called photosynthesis. During this process, plants convert carbon dioxide and water, which they take up from their environment, into glucose and oxygen. Plants tend to absorb the carbon dioxide required for photosynthesis through their leaves from the atmosphere and the water they require for photosynthesis through their roots from soil.

Photosynthesis must occur in the presence of a light source, like the Sun. The oxygen that’s produced in photosynthesis is either used in cellular respiration or is released back into the atmosphere. Plants can use the glucose produced in photosynthesis as a building material or as a reactant for cellular respiration to release energy in the form of ATP.

This means that the equation that correctly shows the reactants and products of photosynthesis is (D). Carbon dioxide plus water forms glucose plus oxygen.

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