The first step in photosynthesis is

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(A) The process of photosynthesis begins with the light-dependent reactions. When light energy (photons) strikes the chlorophyll molecules in the phot

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Excitation of chlorophyll by light

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(A) The process of photosynthesis begins with the light-dependent reactions. When light energy (photons) strikes the chlorophyll molecules in the photosystems,the electrons in the chlorophyll become excited and move to a higher energy state. This excitation of chlorophyll is the primary and initial step that triggers the subsequent electron transport chain,leading to the photolysis of water and the synthesis of $ATP$ and $NADPH$.

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