Comment on the statement – Respiration is an energy producing process but $A T P$ is being used in some steps of the process.

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Solution

Respiration

Respiration is the process to produce energy in the form of $A T P$ by the oxidation of respiratory substrates such as glucose, fats, and proteins.
There are two types of respiration that occurs based on the presence or absence of oxygen - aerobic or anaerobic respiration.

Glycolysis is a common process that occurs both in aerobic and anaerobic respiration.

Consumption of ATP in respiration

In glycolysis, the first step of respiration, $A T P$ is consumed. Glycolysis is divided into two phases: preparatory phase and payoff phase. In the preparatory phase, 2 molecules of $A T P$ are consumed.

1.Conversion of glucose to glucose-6 phosphate requires the breakdown of $A T P$ .

2.Conversion of fructose to fructose-1,6 bisphosphate also requires the breakdown of $A T P$ .
Conclusion

In aerobic respiration out of total $A T P$ produced 2 are used in the preparatory phase of glycolysis. Thus net gain is 38 $A T P$ molecules in aerobic respiration for one molecule of glucose. Similarly in the case of anaerobic respiration from the total $A T P$ produced, some of them are utilised in the process, thus the net gain is 2 $A T P$ molecules for one molecule of glucose. Therefore it can be said that respiration is an energy producing process but $A T P$ is being used in some steps of the process.

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

Comment on the statement – Respiration is an energy producing process but $A T P$ is being used in some steps of the process.