How photosynthesis and cellular respiration create a metabolic pathway?

A metabolic pathway is a system of interrelated biochemical reactions that transform a molecule or molecules of a substrate through a series of metabolic intermediates, step by step.

Explanation:

Photosynthesis is a "developing," or anabolic, pathway, which builds sugars out of smaller molecules. Cellular respiration, by comparison, breaks down sugar into smaller particles and is a pathway that is "breaking down," or catabolic. Anabolic pathway: in bigger ones, small molecules are assembled.

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