Which of the following is NOT an example of energy coupling?

W) An ion releases energy as it travels through an ion channel down its concentration gradient X) A kinase hydrolyzes ATP for energy to catalyze a reaction

Y) A transport molecule uses energy from one molecule going down its concentration gradient to power transport of another molecule up its gradient

Z) As protons move down their concentration gradient, ATP synthase gathers energy to catalyze the synthesis of ATP
W) AN ION RELEASES ENERGY AS IT TRAVELS THROUGH AN ION CHANNEL DOWN ITS CONCENTRATION GRADIENT