Cell Respiration Study Guide B1

Chapter 7        Study Guide        Cellular Respiration

1. Most eukaryotic cells produce only about ___________  ATP Molecules per Glucose Molecule.
2. What is the process by which glucose is converted to pyruvic acid?

3. At the begining of aerobic respiration, pyruvic acid bonds to a molecule called _______________________ to form Acetyl CoA.
4. The breakdown of pyruvic acid in the presence of oxygen is called ___________________  _______________________.

5. With every completion of the Krebs Cycle, how many ATP Molecules are made?
6. What is the waste product of the Krebs Cycle?

7. The conversion of pyruvic acid to carbon dioxide and ethanol is called _____________________   _______________________.

8. The release of energy from food molecules in the absence of oxygen is _______________________     _____________________________.

9. What is the byproduct of the electron transport Chain?

10. How efficient is Anaerobic Respiration? __________%  Aerobic Respiration?

11. What is the first pathway of cellular respiration called?

12.What is the location of Glycolysis?

13. What is the scientific unit of Energy?

14. What do you call cellular respiration in the presence of oxygen?

15. Yeast produces ___________________ and _________________ in the process known as _____________________  _______________________.

16. In cellular respiration, glycolysis proceeds the _________________.

17. In cellular respiration, more energy is transferred in the  ________________ than in any other step.

18. Glucose molecules are converted into ________________  ______________ molecules in the process of glycolysis.

19. What is the location of the electron transport chain in prokaryotes?

20. The processes of glycolysis and the anaerobic pathways is called _________________.

21. What is the product of acetyl CoA and oxaloacetic acid?

22. What molecule is the electron acceptor of glycolysis?

23. The breakdown of organic compounds to produce ATP is known as __________  __________.
24. Glycolysis begins with glucose and produces _____________  ______________.

25. An important molecule generated by both lactic acid and alcoholic fermentation is ____________.

26.  In the first step of aerobic respiration, pyruvic acid from glycolysis produces CO2, NADH, H+, and ____________  ______________.

27. The electron transport chain is driven by two products of the Krebs Cycle – ______________________  and  ___________________________.
28. What happens to electrons as they are transported along the electron transport chain?

29. The energy efficiency of aerobic respiration (including glycolysis) is approximately ______________  ____________________.

30. Where in the mitochondria do the reactions of the Krebs cycle occur?

31. Where in the mitochondria is the electron transport chain located?

32. In alcoholic fermentation, ethyl alcohol is produced from ____________________.

33.  _______________, and ________________ supply electrons and protons to the electron transport chain.

34. The fourth step of glycolysis yields four ATP molecules, but the net yield is only two ATP molecules.  Explain this discrepancy.

35. Under what conditions would cells in your body undergo lactic-acid fermentation?

36. Glycolysis produces only 3.5% of the energy that would be produced if an equal quantity of glucose were completely oxidized.  What has happened to the remaining energy in the glucose?

37. Explain the role of oxaloacetic acid with respect to the cyclical nature of the Krebs cycle.

38  What happens to electrons that accumulate at the end of the electron transport chain?

39. Where in the mitochondrion do protons accumulate, and what is the source of the protons?