The first step of photosynthesis is:

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(A) The first step of photosynthesis is the absorption of light energy by chlorophyll molecules. When a photon of light strikes the chlorophyll molecu

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Excitation of an electron from chlorophyll by a photon of light.

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(A) The first step of photosynthesis is the absorption of light energy by chlorophyll molecules. When a photon of light strikes the chlorophyll molecule,it excites an electron to a higher energy state,causing it to be released or ejected from the chlorophyll molecule. This process is known as photo-excitation of chlorophyll,which initiates the light-dependent reactions.

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