The following sentences once again, the three stages of aeroble respirationStudy the below to refresh your memory, and then select the correct answers to fill in the blanks and complete the statements

Stage 1

Glycolysis occurs in the ______
The carbon atoms in glucose are converted to two molecules of _______. Two NADH and four ________form. Since the cell had to invest two ATP to begin the reaction, the net yield is _____ ATP

Stage 2

The second stage reactions, including the Krebs cycle , occur in the______. Overall, the second stage reactions generate eight NADH and two ______. The six carbon atoms that originally entered aerobic respiration in molecules of ______ leave the cell as six molecules of _______.

Stage 3
____________________ occurs in the mitochondrion NADH and ________ bring electrons to electron transfer chains. Energy lost by the electrons as they flow through the chains is used to move across the inner membrane. The resulting gradient means that there are _______ hydrogen ions in the intermembrane space than in the matrix. Hydrogen flow from the area of high concentration to the area of low concentration through ATP synthases. This flow drives the creation of _______.