Final answer:
Photosynthesis occurs in producers, while cellular respiration occurs in all living organisms. Both processes involve the exchange of gases and play a role in the carbon cycle.
Step-by-step explanation:
Photosynthesis and cellular respiration are both processes that occur in living organisms. While photosynthesis occurs in producers (plants, algae, and some bacteria), cellular respiration occurs in all living organisms, including plants and animals. Both photosynthesis and cellular respiration play a crucial role in the carbon cycle and involve the exchange of gases. During photosynthesis, carbon dioxide is consumed and oxygen is produced, while during cellular respiration, oxygen is consumed and carbon dioxide is produced.