7. Cells obtain energy by either capturing light energy through photosynthesis or
by breaking down carbohydrates through cellular respiration. In both
photosynthesis and cellular respiration, the energy is ultimately derived from the
Sun in a
O A. reversible process.
O B. highly efficient process which involves no loss of heat to the environment.
OC. one-way process.
O D. pathway that involves taking in heat from the environment at each step.
