Who breaks the bonds by releasing the stored energy?

• A. Consumers
• B. Producers
• C. Autotrophs
• D. Decomposers

Answer: (A)

Energy stored in chemical bonds is released when those bonds are broken during cellular metabolism. Cells do this to harvest energy and make ATP for work. Consumers are the organisms that obtain energy by eating other organisms, so they routinely break the bonds in the food they ingest to release that energy for their own cells. Producers focus on capturing energy from sunlight and storing it in chemical bonds, and decomposers break down dead matter to recycle nutrients; while both processes involve bond-breaking, the immediate release of stored energy from ingested food is most characteristic of consumers.