Distinguish the difference between physical change or chemical change.
Should be C.
Answer:
14
Explanation:
mass number = protons + neutrons
The energy generated by the movement of electrons is used to pump electrons across the inner mitochondrial membrane to an area of higher concentration. 17. Where do these protons (H+) come from? The originally came from a glucose molecule and were carried to the electron transport chain by NADH and FADH2.
The answer would be glucose molecule.
