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Which of the following is NOT a step in the light-dependent reactions?

-High-energy electrons move through the electron transport chain

-Pigment in the photocenters absorb light

-ATP synthase allows H+ ions to pass through thylakoid membrane

-ATP and NADPH are used to produce high energy sugars

Verified Answer :

cutiepie32

The answer would be D. 

I hope this helps. 
 
 The Calvin cycle uses carbon dioxide molecules as well as ATP and NADPH from the light-dependent reactions to make sugars. The reactions of the Calvin cycle useATP and NADPH as energy sources. They do not directly require light.

Answer: ATP and NADPH are used to produce high energy sugars

Explanation:

Photosynthesis is composed of a light phase and a dark or biosynthetic phase. In the light phase the energy of light is transformed into chemical energy. The ATP and NADPH produced in the light phase are then used in the dark phase (not dependent on light) to synthesize organic matter (like carbohydrates or sugars, amino acids) from inorganic compounds (CO2, nitrates and nitrites and sulfates).

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