The link between glycolysis,the Krebs cycle,and the $\beta$-oxidation of fatty acids/carbohydrate and fat metabolism is ...........

Proteins act as respiratory substrates only when:

Given below are two statements:
Statement $I$ - $A$ stepwise release of chemical bond energy facilitates the utilization of a relatively higher proportion of that energy in $ATP$ synthesis.
Statement $II$ - Due to stepwise oxidation of respiratory substrate,the same pathway may be used for synthesis of another biomolecule.
In light of above statements,select the correct answer from the options given below.

$\beta$-oxidation occurs in .........

In a prolonged fast,the organic substances are used by the body in which of the following sequences?

During prolonged fasting,which of the following is the correct order of utilization of energy sources in the human body?