Which of the following biomolecules is common to respiration mediated breakdown of fats, carbohydrates, and proteins?

Step-by-step solution

The organic substances which are oxidised to produce energy during respiration are called respiratory substrates. Carbohydrates are the main respiratory substrates as our food contains 65-70% carbohydrates. The most preferred substrate is glucose as it is the most available carbohydrate. Fats are used as the respiratory substrate in deficiency of carbohydrates. Proteins are rarely used as a respiratory substrate. (only in deficiency of carbohydrates and fats).When carbohydrates and fats are used as respiratory subs