How is cellular respiration different from photosynthesis?

Photosynthesis produces oxygen, and cellular respiration produces carbon dioxide

In cellular respiration, we intake oxygen and exhale carbon dioxide, while in photosynthesis, plants use carbon dioxide and produce oxygen as a product

Cellular respiration is the process by which living things convert oxygen and glucose to carbon dioxide and water, thereby yielding energy. ... While photosynthesis requires energy and produces food, cellular respiration breaks down food and releases energy.

answer; i believe the correct answer is ( proteins );