Compound "K" Is the Ultimate Product of a Linear Metabolic

Multiple Choice

Compound "K" is the ultimate product of a linear metabolic pathway consisting of ten enzymatically catalyzed reactions as shown below.

Complete the following description.
If "K" inhibits activity of enzyme "5", then enzyme "5" is under ___ control.If enzyme "3" becomes activated in response to activity of protein kinase A only when compound "A" is present, then enzyme "3" is under ___ control.If enzyme "2" is only expressed in the presence of high concentrations of "A," then enzyme "2" is under ___ control.If all of these are true, high concentrations of "__" will decrease the flux through the pathway.

A) covalent modification; allosteric; genetic; A
B) allosteric; covalent modification; genetic; K
C) genetic; allosteric; genetic; K
D) allosteric; genetic; genetic; K
E) allosteric; genetic; genetic; A