Textbook Question
Explain what is meant by saying the light reactions convert solar energy to chemical energy.
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9. Photosynthesis
Light Reactions of Photosynthesis
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Where do the light-dependent reactions of photosynthesis take place?
A
Stroma
B
Cytoplasm
C
Nucleus
D
Thylakoid membranes
Verified step by step guidance1
Understand that photosynthesis is divided into two main stages: the light-dependent reactions and the light-independent reactions (Calvin cycle).
Recognize that the light-dependent reactions require light energy to produce ATP and NADPH, which are used in the Calvin cycle.
Identify the location of the light-dependent reactions within the chloroplast. These reactions occur in the thylakoid membranes.
Recall that thylakoids are membrane-bound compartments inside chloroplasts, and they contain chlorophyll, which captures light energy.
Conclude that the thylakoid membranes are the specific site where the light-dependent reactions of photosynthesis take place, as they provide the necessary environment for capturing and converting light energy.
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