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Multiple Choice
In which stages of photosynthesis are carbon dioxide and oxygen involved in ATP production?
A
Carbon dioxide is involved in the light-dependent reactions, and oxygen is a byproduct of the Calvin cycle.
B
Both carbon dioxide and oxygen are involved in the light-dependent reactions.
C
Both carbon dioxide and oxygen are involved in the Calvin cycle.
D
Carbon dioxide is involved in the Calvin cycle, and oxygen is a byproduct of the light-dependent reactions.
Verified step by step guidance
1
Understand the two main stages of photosynthesis: the light-dependent reactions and the Calvin cycle (light-independent reactions).
Recognize that the light-dependent reactions occur in the thylakoid membranes of chloroplasts, where sunlight is used to split water molecules, releasing oxygen as a byproduct.
Identify that the Calvin cycle takes place in the stroma of chloroplasts, where carbon dioxide is fixed into organic molecules using ATP and NADPH produced in the light-dependent reactions.
Note that oxygen is not directly involved in ATP production but is released during the light-dependent reactions as water is split.
Understand that carbon dioxide is utilized in the Calvin cycle to produce glucose, using the ATP generated in the light-dependent reactions.