1. Which of the following mechanisms cannot be used to regulate metabolic pathways?
a) Allosteric activators and inhibitors.
b) Covalent modifications of enzymes.
c) Regulation of the genes for the enzymes used in the pathway.
d) Use of different enzymes at a given point in the forward and reverse metabolic pathways.
e) None of these. They are all mechanisms used to regulate metabolic pathways.
Answer: e) None of these. They are all mechanisms used to regulate metabolic pathways.
Allosteric enzyme activity can be activated or inhibited through non covalent interaction of the enzyme with small molecules called effectors.
Covalent addition of a group to an enzyme changes the activity of the enzyme