Multiple Choice
In which cellular structure are the enzymes of the Calvin cycle localized?
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9. Photosynthesis
Calvin Cycle
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Select the correct statement about the Calvin cycle.
A
The Calvin cycle requires light to proceed.
B
The Calvin cycle occurs in the mitochondrial matrix.
C
O$_2$ is produced as a direct product of the Calvin cycle.
D
The Calvin cycle uses ATP and NADPH to convert CO$_2$ into glucose.
Verified step by step guidance1
Understand that the Calvin cycle is part of photosynthesis, specifically the light-independent reactions, which occur in the stroma of the chloroplast, not the mitochondrial matrix.
Recognize that the Calvin cycle does not directly require light to proceed, but it depends on ATP and NADPH, which are produced during the light-dependent reactions of photosynthesis.
Clarify that O$_2$ is not a product of the Calvin cycle. Instead, O$_2$ is produced during the light-dependent reactions when water (H$_2$O) is split.
Learn that the primary purpose of the Calvin cycle is to fix carbon dioxide (CO$_2$) into organic molecules, ultimately producing glucose (C$_6$H$_{12}$O$_6$) using ATP and NADPH as energy sources.
Conclude that the correct statement is: 'The Calvin cycle uses ATP and NADPH to convert CO$_2$ into glucose.' This highlights the role of the Calvin cycle in synthesizing carbohydrates.
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