Protein is used as respiratory substrate only when

Question

Q. Carbohydrates, proteins, fats and organic acids are the various respiratory substrates. Amongst these which is the most preferred substrate for respiration?

Answer 1

Primary respiratory substrate is carbohydrate, secondary respiratory substrate is fat, tertiary respiratory substrate is protein. Thus, if both, carbohydrates and fats are exhausted, protein is used as the respiratory substrate.

Protein is used as respiratory substrate only when

The correct option is C Carbohydrates and Fats both are exhausted.Primary respiratory substrate is carbohydrate, secondary respiratory substrate is fat, tertiary respiratory substrate is protein. Thus, if both, carbohydrates and fats are exhausted, protein is used as the respiratory substrate.

The correct option is C Carbohydrates and Fats both are exhausted.
Primary respiratory substrate is carbohydrate, secondary respiratory substrate is fat, tertiary respiratory substrate is protein. Thus, if both, carbohydrates and fats are exhausted, protein is used as the respiratory substrate.