The raw materials for respiration are .........

Carbon dioxide is liberated during:

Respiration is an energy-releasing and enzymatically controlled catabolic process which involves a step-wise oxidative breakdown of organic substances inside living cells. In this statement about respiration,explain the meaning of $(a)$ Step-wise oxidative breakdown $(b)$ Organic substances (used as substrates).

During aerobic respiration,the main thing required is

Which of the following is a direct oxidation pathway that occurs without glycolysis?

In which process,the $C-C$ bonds of complex compounds break through oxidation within the cells and it is leading to the release of a considerable amount of energy?