In plants,energy is produced during the process of:

Respiration is a

The respiratory substrate that is considered primary is ......... .

The end products of respiration in plants are:

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).

Which of the following shows a higher rate of respiration?