The energy stored in food molecules in living cells is gradually released in a series of linked chemical reactions called a

In cells, chemical energy is gradually released in a series of chemical reactions that are assisted by enzymes. ATP--when cells break down food molecules, some of the energy on the molecules is released as heat. Cells use much of the remaining energy to make ATP.

website: Explanation: http://www.wctech.org/www.wctech.org › wcts › Staff › chapter 9 photosynthesis & cellular res..

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