Multiple Choice
In plants, algae, and cyanobacteria, what is the main result of photosynthesis?
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9. Photosynthesis
Review of Photosynthesis
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In oxygenic photosynthesis in plants, what are the primary products (outputs) of the overall reaction?
A
ATP and NADPH
B
Lactic acid and carbon dioxide
C
Carbon dioxide and water
D
Glucose (sugar) and oxygen
Verified step by step guidance1
Understand that oxygenic photosynthesis is the process by which plants convert light energy into chemical energy, using carbon dioxide and water as inputs.
Recall the overall balanced chemical equation for oxygenic photosynthesis: \$6\,CO_2 + 6\,H_2O + light \rightarrow C_6H_{12}O_6 + 6\,O_2$.
Identify the products on the right side of the equation: glucose (\(C_6H_{12}O_6\)), which is a sugar, and oxygen (\(O_2\)).
Note that ATP and NADPH are produced during the light-dependent reactions but are used up in the Calvin cycle; they are not the final products of the overall photosynthesis reaction.
Conclude that the primary outputs of oxygenic photosynthesis are glucose (a sugar) and oxygen gas.
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