What process uses light energy to convert it into chemical energy?

What process uses light energy to convert it into chemical energy?

• A. Lactic acid fermentation
• B. Chemoautotrophs
• C. Photosynthesis
• D. Photosynthesis equation

Answer: (C)

Light energy captured by photosynthetic pigments is converted into chemical energy stored in sugars. In the chloroplasts, photons drive the light-dependent reactions to produce ATP and NADPH while splitting water and releasing oxygen. Those energy-rich molecules then power the Calvin cycle, which fixes carbon dioxide into glucose. This is the process that directly turns light energy into chemical energy stored in organic molecules. Lactic acid fermentation, by contrast, uses sugar without light energy and occurs anaerobically. Chemoautotrophs obtain energy from inorganic chemical reactions rather than light. The photosynthesis equation simply summarizes the overall reaction rather than describing the actual steps of the process.

Light energy captured by photosynthetic pigments is converted into chemical energy stored in sugars. In the chloroplasts, photons drive the light-dependent reactions to produce ATP and NADPH while splitting water and releasing oxygen. Those energy-rich molecules then power the Calvin cycle, which fixes carbon dioxide into glucose. This is the process that directly turns light energy into chemical energy stored in organic molecules.

Lactic acid fermentation, by contrast, uses sugar without light energy and occurs anaerobically. Chemoautotrophs obtain energy from inorganic chemical reactions rather than light. The photosynthesis equation simply summarizes the overall reaction rather than describing the actual steps of the process.