Final answer:
The first step of the light trapping phases of photosynthesis involves the absorption of light by chlorophyll. The second phase, or the Calvin cycle, involves carbon fixation, reduction, regeneration, and the release of glucose.
Step-by-step explanation:
The first step of the light trapping phases of photosynthesis involves the absorption of light by the pigment chlorophyll in the thylakoid membranes of the chloroplast. This light energy is then used to generate two molecules, ATP and NADPH, through two electron transport chains. The next four steps in the second phase, or the Calvin cycle, involve carbon fixation, where carbon dioxide is incorporated into organic molecules; reduction, where ATP and NADPH are used to convert these organic molecules into glucose; regeneration of the starting molecule, RuBP; and the release of glucose.