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Multiple Choice
What happens to the ATP produced during the light-dependent reactions (Stage 1) of photosynthesis?
A
It is released into the atmosphere as a byproduct.
B
It is converted directly into NADPH.
C
It is stored in the chloroplasts for later use.
D
It is used to synthesize glucose in the Calvin cycle.
Verified step by step guidance
1
Understand that photosynthesis consists of two main stages: the light-dependent reactions and the Calvin cycle (light-independent reactions).
Recognize that during the light-dependent reactions, ATP and NADPH are produced. These reactions occur in the thylakoid membranes of the chloroplasts.
Clarify that ATP produced in the light-dependent reactions is not released into the atmosphere or stored for later use. Instead, it serves an immediate purpose.
Identify that the ATP generated is used as an energy source in the Calvin cycle, which takes place in the stroma of the chloroplasts.
Conclude that the ATP provides the necessary energy to drive the synthesis of glucose from carbon dioxide and water during the Calvin cycle, thus linking the two stages of photosynthesis.