Final answer:
The products of photosynthesis, which are glucose and oxygen, become the reactants for cellular respiration, thereby connecting the two processes. Choice C is correct, showing that photosynthesis and cellular respiration are interdependent.
Step-by-step explanation:
The relationship between the reactants of cellular respiration and the products of photosynthesis is one of direct dependence. The correct choice is C) The products of photosynthesis are the reactants of cellular respiration. Photosynthesis uses carbon dioxide and water in the presence of sunlight to produce glucose and oxygen. These products are then used in cellular respiration to create ATP, which is the energy currency of the cell, along with water and carbon dioxide as byproducts. Essentially, photosynthesis and cellular respiration work together to transfer energy and cycle materials through ecosystems, particularly the oxygen and carbon cycles.
Additionally, cellular structures like mitochondria and chloroplasts are involved in these processes, with chloroplasts being the site of photosynthesis in plant cells and mitochondria being the site of cellular respiration in eukaryotic cells.