Question

unit 3.1 quiz - due 11/24
3.1.9-12.e what best describes the role of light in the overall process of photosynthesis?
○ light provides the energy for breaking apart sugars into small molecules.
○ light provides the energy for assembling small molecules into sugars.
○ light accepts the energy that is released by small molecules.
○ light accepts the energy that is released by sugars.

Explanation:

In photosynthesis, light energy is captured and used to convert small molecules (like CO₂ and H₂O) into sugars (glucose). Breaking sugars is respiration, and light doesn't accept energy from sugars (sugars release energy in respiration). So light provides energy for assembling small molecules into sugars.

Answer:

Light provides the energy for assembling small molecules into sugars.