Holt Modern Biology 1st Edition by John Postlethwait ,Janet Hopson

Exercise 33

INTERPRETING GRAPHICS: The illustration below shows some stages and reactants of cellular respiration. Use the illustration to answer the question that follows.

At which of the points is ATP, the main energy currency of the cell, produced?
F) 1 only
G) 2 only
H) 1 and 3
J) 1, 2, and 3