The statement that BEST compares the biochemical processes of photosynthesis and cellular respiration is:
Photosynthesis is the process of trapping the energy of the Sun and storing it in glucose; cellular respiration is the process of releasing the energy stored in the chemical bonds of glucose.
This accurately reflects the fundamental roles of both processes: photosynthesis captures solar energy to produce glucose, while cellular respiration breaks down glucose to release that stored energy for use by the organism.