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Multiple Choice
Which best describes the role of ATP during photosynthesis?
A
ATP is synthesized in the chloroplasts and used to convert carbon dioxide into glucose.
B
ATP is used to transport electrons in the electron transport chain.
C
ATP is broken down to release energy for the absorption of sunlight.
D
ATP is stored in the mitochondria and used during cellular respiration.
Verified step by step guidance
1
Understand the role of ATP in photosynthesis: ATP (adenosine triphosphate) is a molecule that provides energy for various cellular processes. In photosynthesis, ATP is synthesized during the light-dependent reactions in the chloroplasts.
Identify the process where ATP is synthesized: During the light-dependent reactions, ATP is produced in the chloroplasts as a result of the electron transport chain and photophosphorylation.
Recognize the function of ATP in the Calvin cycle: ATP is used in the Calvin cycle, which is part of the light-independent reactions, to convert carbon dioxide into glucose. This process requires energy, which is provided by ATP.
Clarify the misconception about ATP's role in electron transport: While ATP is involved in the electron transport chain, its primary role is not to transport electrons but to provide energy for the synthesis of glucose.
Differentiate ATP's role in photosynthesis from cellular respiration: ATP is synthesized in chloroplasts during photosynthesis and used immediately in the Calvin cycle, whereas in cellular respiration, ATP is produced in mitochondria and used for various energy-requiring processes in the cell.