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Multiple Choice
What is the primary driving force of photosynthesis in plants?
A
Oxygen release
B
ATP synthesis
C
Carbon dioxide fixation
D
Light energy absorption
Verified step by step guidance
1
Begin by understanding the process of photosynthesis, which is the method by which plants convert light energy into chemical energy.
Recognize that photosynthesis occurs in two main stages: the light-dependent reactions and the Calvin cycle (light-independent reactions).
In the light-dependent reactions, light energy is absorbed by chlorophyll and other pigments in the chloroplasts, which is the primary driving force of photosynthesis.
This absorbed light energy is used to generate ATP and NADPH, which are energy carriers that fuel the subsequent reactions in the Calvin cycle.
Finally, in the Calvin cycle, ATP and NADPH are used to fix carbon dioxide into glucose, but the initial driving force remains the absorption of light energy.