Cell Respiration in Review
1.Most Eukaryotic cells produce about ___36___ ATP molecules per glucose molecule.
2. What is the process by which glucose is converted to pyruvic acid?______Glycolysis______
3. Before the Krebs cycle starts, pyruvic acid is broken down to a two carbon molecule called______
______Acetyl______.
4. This 2 carbon molecule bonds with ___CoEnzyme______to form Acetyl CoA.
5. With one round of the krebs cycle it produces ____1_____ ATP, ___3______NADH, ______2___CO2.
6. The waste product of the Krebs cycle is? ____CO2______
7. The making of energy in the absence of oxygen is called ____Anerobic Respiration______
8. What is the name of the first pathway in cell respiration? ___Glycolysis______
9. Where does glycolysis occur in the cell? ___Cytoplasm______
10. The making of energy in the presence of oxygen is called. _ Aerobic Respiration______
11. Yeast produces _____Ethanol______and ______CO2______.
12. In the presence of Oxygen, glycolysis precedes the _____Krebs______.
13. In the absence of Oxygen, glycolysis precedes the ______Fermentation______.
14. In eukaryotic cells, the ETC takes place in the ______Mitochondrial Membrane______.
15. In the prokaryotic cells, the ETC takes place in the ______Cell Membrane______.
16. An important molecule that is produced by lactic acid and alcoholic fermentation that is
regenerated back to glycolysis is ______NAD+______.
17. The ETC is driven by these two electron carrying products that the krebs cycle makes.
______NADH______and ______FADH2______
18. In cell respiration more energy is made in the ______ETC______than any other pathway.
19. Where does the Krebs Cycle occur on the cell. ______Mitochondria______
20. What is the chemical equation for cell respiration?
___SEE NOTES______
21. 2 ______Pyruvates______molecules result from one glucose molecule in glycolysis.
22. In alcoholic fermentation, ethyl alcohol is produced from this molecule. _____Glucose______
23. What does ATP stand for? ___Adenosine Triphosphate______
24. What does ADP stand for? ____Adenosine Diphosphate______
25. How many ATP are produced in the ETC? _____32______
26. Lactic acid buildup in your muscles occur because there is lack of ______Oxygen______.
27. At the end of the krebs cycle, before it goes to the ETC, _____2______ATP, ______6______NADH, _____2______FADH2, and ______4_____CO2 molecules are formed.
28. Explain how the CO2 molecules and FADH2 and NADH molecules are formed in the Krebs Cycle.
_When citric acid is reduced to a 5 carbon molecule the carbon bonds with O2 to make CO2. This diffuses into our bloodstream and into our lungs where we breathe it out. The H attached to the Carbons bond to the NAD and FAD to make NADGH and FADH. This also happens when the 5 carbon molecule is reduced to a 4 carbon molecule. ______
29. What is the name of the protein in which the Hydrogen ions move back through the mitochondrial
membrane that enables ATP to be made? ______ATP Synthase______
30. How many additional ATP are made during fermentation? __0______
31. Glycolysis makes ___4______ATP but the NET gain of ATP is ____2______. Explain this.
______The process uses 2 ATP.