Arginine Is Synthesized in a Pathway Involving Several Enzymes and Biosynthetic

Essay

Arginine is synthesized in a pathway involving several enzymes and biosynthetic intermediates. Five Neurospora crassa strains were cultured on minimal media containing various additives, and the results are shown. Match each N. crassa strain with its description.


$$\begin{array} { | c | c | c | c | c | } \hline & \text { glutamate } & \text { ornithine } & \text { citrulline } & \text { arginine } \\\hline \text { Strain A } & \text { growth } & \text { growth } & \text { growth } & \text { growth } \\\hline \text { Strain B } & \text { no growth } & \text { no growth } & \text { growth } & \text { growth } \\\hline \text { Strain C } & \text { no growth } & \text { no growth } & \text { no growth } & \text { no growth } \\\hline \text { Strain D } & \text { no growth } & \text { no growth } & \text { no growth } & \text { growth } \\\hline \text { Strain E } & \text { no growth } & \text { growth } & \text { growth } & \text { growth } \\\hline\end{array}$$