Which of the following is the source of respiration?

The process of breaking down complex molecules within cells through the oxidation of $C-C$ bonds,which releases a significant amount of energy,is known as $.......$.

Respiration differs from combustion in which of the following?

Which of the following substrates is used in protoplasmic respiration?

The process of respiration is concerned with

Respiratory substrates are the organic substances which are ..... during respiration to liberate energy.