Detailed Instructions: In this task, you are given a sentence in the English language. Your job is to translate the English sentence into the Spanish language.
Q: How many high-energy phosphates does the synthesis of a urea molecule require by a return of the urea cycle ?
A:
¿Cuántos fosfatos de alta energía requiere la síntesis de una molécula de urea mediante una vuelta del ciclo de la urea?