Cells control or regulate the flux through metabolic pathways by means of
(I)allosteric control of enzymes.
(II)covalent modification of enzymes.
(III)genetic control of the concentrations of enzymes.
(IV)genetic expression of allosteric effectors.
A)I,II,III,IV
B)II,III
C)I,II,IV
D)I,II,III
E)I,IV

Question

Quizplus · Accepted Answer

The statement accurately lists the mechanisms that cells use to regulate metabolic pathways, including allosteric control of enzymes, covalent modification of enzymes, and genetic control of enzyme concentrations. Genetic expression of allosteric effectors is not a commonly used mechanism for regulating metabolic pathways. Therefore, the best choice is D, which includes allosteric control of enzymes, covalent modification of enzymes, and genetic control of enzyme concentrations.

Cells Control or Regulate the Flux Through Metabolic Pathways by Means