Electron Transport Chain Review Worksheet
1. Where does the ETC occur?
mitochondrion
2. While on the ETC, electrons are transported from one ______protein/enzyme_______ to another.
3. What molecule is the final acceptor of the electrons?
Oxygen
Carbon
CoA
4. Electrons, the final electron acceptor and hydrogen ions combine to form what product?
H2O
5. For every 2 high energy electrons, what is transported across the membrane in the mitochondrion?
1 H+, proton
6. What charge builds up in the intermembrane space?
Positive (+)
Negative (-)
7. What charge builds up in the matrix?
Positive (+)
Negative (-)
8. Hydrogen ions travel through channels into a protein called what?
CoA
Amylase
Glucose
ATP Synthase
9. This protein spins around like a turbine energy creating ____ATP__________ from ADP + P.
10. Glycolysis produces a net gain of _______2___________ ATP.
11. The Krebs Cycle and the ETC produce ____34_____________ ATP.
12. Cellular respiration in total can produce _____36___________ ATP.
13. What are the two waste molecules produced by cellular respiration (you may circle more than one)?
CO2
C6H12O6
O2
H2O
pyruvic acid
14. Not all of the energy contained in glucose is put into ATP. What is the rest of the energy released as?
Heat
CoA
15. Label the major parts of the ETC. Include: mitochondrion, intermembrane space, matrix, H+, e-, ATP
synthase, O2, H2O, and enzymes (you don’t need to know the names of these). Highlight the direction of flow of ethrough the ETC. Draw arrows of a different color to indicate direction of flow of H+.