Question

review the schematic diagram of photosynthesis and the involvement of the chloroplast in this process. we know that the purpose of photosynthesis is to convert light energy into usable chemical energy. that process takes several steps. one of the first steps in this energy conversion process is what? a energy from sunlight is converted into a usable form of chemical energy, glucose. b stored chemical energy in the forms of atp and nadph are transferred to the granam in order to produce glucose. c energy from sunlight is absorbed by the thylakoid membranes, used to decompose water and transform carbon dioxide. d energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of nadph and atp.

Explanation:

In photosynthesis, the first step of energy - conversion is when chlorophyll absorbs sunlight and converts it into stored chemical energy in the form of NADPH and ATP. This occurs during the light - dependent reactions. Option A is the final result, not the first step. Option B is incorrect as the transfer of ATP and NADPH to produce glucose is part of the Calvin cycle (light - independent reactions). Option C is incorrect as the decomposition of water and transformation of carbon dioxide are subsequent steps after the initial energy absorption and conversion.

Answer:

D. Energy from sunlight is absorbed by chlorophyll and converted into stored chemical energy, in the form of NADPH and ATP.