processes are coupled to the dephosphorylation of ATP? reversible isomerization of glucose-6-
phosphate to fructose-6-phosphate during glucose catabolism anabolism of amino acids
membrane transport that maintains Na+ levels in cells myosin action during muscle contraction
the exergonic hydrolysis of creatine phosphate One reason that ATP is a source of energy is that
the products of ATP hydrolysis have less free energy than the reactants. Why? (There will be
more than one correct answer.) hydrogen bonding between free phosphate and water
electrostatic repulsion in ATP resonance stabilization of free phosphate formation of ion pairs
involving ATP
Solution
1. a.) --> Myosin requries dephoshorylation of ATP for its action in muscle
contraction --> Membrane transport of Na ions inside the cells require dephoshorylation of ATP.
--> Anabolism of amino acids also require dephosphorylation of ATP b.) electrostatic repulsion
in ATP resonance stabilization of free phosphate 2. Lactose Galactose Glucose