Cellular respiration takes place in all types of living organisms. Photosynthesis occurs only in plants and some bacteria.Cellular respiration involves using that chemical energy and breaking it down to release energy. Photosynthesis involves conversion of one type of energy into another: light energy into chemical energy.Cellular respiration uses glucose molecules and oxygen to produce ATP molecules and carbon dioxide as the by-product. Photosynthesis uses water, sunlight, and carbon dioxide from the atmosphere to create glucose molecules, and releases oxygen as a by-product.Cellular respiration utilizes glucose molecules to obtain energy-storing ATP molecules. Photosynthesis utilizes sunlight to produce food molecules.Cellular respiration takes place in the cytoplasm and mitochondria of the cell. ![]()
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