1. In the _______________ of glycolysis, two 3-carbon sugars are oxidized. 

2. Glycolysis occurs in the ___________________________of the cell. 

3. Aerobic respiration __________require oxygen. 

4. In the _______ of glycolysis, rearrangement of the two 3-carbon sugars produces two pyruvate molecules 

5. Energy that is produced is stored in the _________________of an adenosine and phosphate molecule. 

6. In aerobic respiration, glucose and _____________combine to produce carbon dioxide, water, and energy.

7.  Aerobic respiration produces _____________________ the energy that anaerobic respiration produces.

8. The net ATP production of glycolysis is _________________ATP molecules.

9. One molecule of glucose produces a net total of  ______________ ATPs in aerobic respiration. 

10. ________________________controls the reactions of respiration. 

11.  Aerobic respiration involves __________________steps.

12. Glycolysis is ________________________________.

13. __________________________is the second step in aerobic respiration.

14. IF oxygen is present, the pyruvate molecules enter the _____________ to be oxidized in Kreb’s Cycle. 

15. Cellular Respiration is an ATP-producing __________________________process.

16. Glycolysis takes one glucose molecule and turns it into __________________________. 

17. In Krebs cycle, the acetyl group is added to a four carbon compound to produces _________________. 

18. When citric acid is broken in Krebs cycle, ________, 2 ATP molecules, and many H+ ions are produced.

19. Carbon dioxide is released as a waste product during ________________________________. 

20. In Krebs cycle, a carbon dioxide molecule & H+ ions are removed from the pyruvate leaving behind ____.

21. ______________________________is the third step in aerobic respiration.

22. The ____________________ releases electrons down a series of receptors (the electron carrier chain). 

23. ______________________is the first step of all cellular respiration (aerobic and anaerobic).

24. In the _______________ of glycolysis, one 6-carbon glucose molecule is split into two 3-carbon sugars. 

25. Another name for ______________________is the citric acid cycle. 

26. Oxygen is needed in __________________________ (this is why we need to breathe in oxygen). 

27. Oxygen is first combined with the electrons, but then quickly combines with the H+ ions to form ______. 

28.  Most of the energy produced by aerobic respiration (34 ATPs) is produced during ________________.

29. _____________________ occurs in a series of nine steps in the inner membrane of the mitochondria. 

30. After glycolysis, anaerobic respiration produces ________________________.

31. _________________ molecules (net) are produced from anaerobic respiration.

32. A common next step in anaerobic respiration is _______________________.

33. In fermentation, pyruvate molecules are converted to lactic acid or ethyl alcohol and produce ____ ATPs.

34. ___________________________ occurs in yeast and in some types of bacteria. 

35. ___________________________ occurs in some types of bacteria and in animal muscles.

Cellular Respiration Notes