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Name _____________________________________ Date __________________ Period ______________
THE MIGHTY-CHONDRIA
In class, we have been discussing the process of aerobic cellular respiration. This is the process that
many, but not all, cells use to make that oh-so-delicious ATP. Please answer all the questions on this
worksheet using your text, notes, and what you know about cellular respiration from class. Read each
question carefully, and do not leave any questions blank. Good luck, have fun, and learn much!
0. If toast always lands butter-side down, and cats always land on their feet, what happens if you tie a piece
of buttered toast to a cat and drop it?
1. What is the entire purpose of cellular respiration?
2. Which phase of cellular respiration produces the most ATP?
For questions 3-5, refer to the following diagram.
3. On the diagram, label where glycolysis takes place.
4. On the diagram, label where protons are stored to create a proton gradient.
Outer membrane
Inner membrane
Inter-membrane space
5. Where are the proteins and other molecules that make up the electron transport chain?
6. What is the purpose of making NAD+ and FADH in to NADH and FADH2?
7. What happens in glycolysis? You may write, draw, or both.
8. Some single-celled organisms exist without having mitochondria (poor lil’ buggers!), or using cellular
respiration. They instead use only a special form of glycolysis. Why do you think this is? (hint: think
about how much energy is produced in each process)
9. What is the final electron acceptor?
10. Name two by-products of cellular respiration.
11. What happens to glycolysis if the electron transport chain stops?
12. What does the word “reduction” mean in BioSpeak?
13. What does the word “oxidation” mean in BioSpeak?
14. What molecules are used to carry electrons through the various steps of cellular respiration?
15. On the mitochondrion below, draw ATP synthase and the ETC. Then, use arrows to show where protons
move from and to. ATP is produced, but in what part of the mitochondrion is it?