Respiratory pathway is

Options

A. catabolic
B. amphibolic
C. anabolic
D. endergonic

Answer

B

Explanation

The same respiratory process which acts as catabolic pathway for respiratory substrates also acts as anabolic pathway for the synthesis of various intermediary metabolic products and secondary metabolites. The respiratory pathway, therefore acts both as catabolic as well as anabolic pathway. Thus, it is better to call it amphibolic pathway rather than a catabolic pathway alone.