The process of respiration is concerned with

Respiration is a type of ......... process.

$A$ process is occurring throughout the day in an organism '$X$'. Cells are participating in this process. During this process,$ATP, CO_2,$ and water are evolved. It is not a light-dependent process. What could be the raw material of this process?

Site of aerobic respiration in higher organisms is/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).

Respiration differs from combustion in which of the following?