Biology – Cells as the basic units of living organisms | e-Consult

Photosynthesis and respiration are complementary processes in plants. Photosynthesis is the process by which plants use light energy, carbon dioxide, and water to produce glucose and oxygen. Respiration is the process by which plants (and other organisms) break down glucose to release energy, carbon dioxide, and water.

The products of photosynthesis – glucose and oxygen – are directly utilized in respiration. Glucose is the primary fuel source for respiration. During respiration, glucose is broken down in the presence of oxygen (aerobic respiration) to produce ATP, carbon dioxide, and water. The carbon dioxide produced during respiration is then used in photosynthesis. This creates a cycle where the products of one process are the reactants of the other.

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