Comment of the statement resiration is an energy producing process but ATP is being used in some steps of the process.

Explanation

During glycolysis and Krebs. Cycle, at few steps ATP is being consumed, however total ATP released is much more during the process. ATP is required at following steps :
(i) Glucose `rarr` Glucose 6 phosphate
(ii) Fructose 6 phosphate `rarr` Fructose 1, 6 biphosphate.