Photosynthesis requires which inputs?

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Multiple Choice

Photosynthesis requires which inputs?

Photosynthesis needs water and carbon dioxide as the raw materials. In the light-dependent reactions, light energy splits water to provide electrons and protons (and releases oxygen as a byproduct). In the Calvin cycle, carbon dioxide is fixed and reduced to form carbohydrates using the energy from ATP and NADPH produced earlier. So the inputs are water and carbon dioxide; oxygen is produced, not used as an input, and glucose is the product, not an input. Without water, the light reactions can’t proceed, and without carbon dioxide, carbohydrate synthesis can’t occur.

Photosynthesis needs water and carbon dioxide as the raw materials. In the light-dependent reactions, light energy splits water to provide electrons and protons (and releases oxygen as a byproduct). In the Calvin cycle, carbon dioxide is fixed and reduced to form carbohydrates using the energy from ATP and NADPH produced earlier. So the inputs are water and carbon dioxide; oxygen is produced, not used as an input, and glucose is the product, not an input. Without water, the light reactions can’t proceed, and without carbon dioxide, carbohydrate synthesis can’t occur.

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