Photosynthesis is the process by which light
energy is transformed into glucose (sugars) that can be used by plants.
Cellular respiration is the process in which cells make energy in the form of
ATP. Photosynthesis occurs in the chloroplasts of the plant cell, while
cellular respiration occurs in the mitochondria.
They work together in the carbon cycle. When the
process of photosynthesis makes glucose, cellular respiration uses it to make
ATP. Both are dependent with each other because the by-product of
photosynthesis, which is oxygen, is needed in the process of cellular
respiration. The energy can be converted and reverted back through the carbon
cycle for the plant cell to be able to breathe and function normally.