Process where cells produce energy from carbohydrates 19 letter word. may be more than 1 word put together.?

Question

may be more than 1 word put together. 19 letters long and is for a crossword puzzle

Answer 1

Cellular respiration.  

This describes the metabolic reactions and processes that take place in a cell or across the cell membrane to get biochemical energy from fuel molecules and the release of the cells' waste products. Energy can be released by the oxidation of multiple fuel molecules and is stored as "high-energy" carriers. The reactions involved in respiration are catabolic reactions in metabolism