Download 12- Cell Respiration Research Packet 7-Cell Respiration

Name: __________________________________________________________ Date: __________________________ Period: ____________
#1a: GLYCOLYSIS
1. Where in the cell does this reaction occur?
______________________________________________
2. What does glucose look like? Draw it:
3. How many carbons does glucose have? _____________
4. Does glycolysis need energy to run? _____________
5. What is that energy called? _______________
6. How many molecules of that energy did we use? _____________
7. Does glycolysis require oxygen? ____________________
8. How would an enzyme help this reaction? ________________________________________________________________
9. How many molecules of Pyruvate is 1 molecule of glucose broken into? ____________
10. What does pyruvate look like? Draw 1 molecule of it:
11. How many carbons does each pyruvate have? ____________
12. How many molecules of ATP were produced during
glycolysis? ___________
13. How many molecules of NAD+ were turned into NADH? _____________
#1b: LINK REACTION/LINKING STEP
14. Where in the cell does this reaction occur? _______________________________________________________________
15. What is broken off of the pyruvate molecule during this step? __________________________________________
16. When a carbon leaves cell respiration, what does it bond with before it leaves? ______________________
17. What molecule will a carbon leave the body as (when it’s bonded with #16)? _________________________
18. What is added to the remaining 2-carbon molecule (the one left behind after the carbon has
broken off)? __________________________________________________________________________________________________
19. What is the resulting product? _____________________________________________________________________________
20. How many molecules of NAD+ were turned into NADH? _____________
21. What two things does NADH carry? __________________________________ and ________________________________
22. NADH can also be called an _________________________________________________________________________________
23. Was any ATP used in the link reaction? _____________
24. Was any ATP produced in the link reaction? _____________
Name: __________________________________________________________ Date: __________________________ Period: ____________
#2: CITRIC ACID CYCLE (aka KREBS CYCLE)
25. Where in the cell does this reaction occur? ________________________________________________________________
26. What molecule do you start with for this cycle (hint: not pyruvate)? ___________________________________
27. How many molecules (of your answer from the previous question) are coming from the link
reaction? _____________
a. So how many times does this cycle need to run in order to process everything? _____________
28. Does the Citric Acid Cycle need Oxygen? ______________
29. What alternative process will occur if oxygen is NOT present? __________________________________________
30. What are two products of the reaction in the previous question?
a.
___________________________ and ___________________________
31. What are the waste products of the CAC/Krebs cycle? ________________________ and ______________________
32. How many molecules of ATP were produced per cycle? _____________ Total? ______________
33. How many molecules of NAD+ were turned into NADH per cycle? _____________ Total? ______________
34. How many total molecules of FAD+ were turned into FADH2 per cycle? ___________ Total? ____________
35. FADH2 can also be called an _________________________________________________________________________________
#3: OXIDATIVE PHOSPHORYLATION
(includes ELECTRON TRANSPORT CHAIN)
36. Where in the cell does this reaction occur? _________________________
37. The NADH and FADH2 bring all of their electrons and drop them off at the ____________________________
_________________________________________________________________________________________________________________
38. The Electron Transport Chain has the function of ________________________________________________________
39. When the ETC transports electrons, it splits off the electron from the __________________________________
40. These positively charged hydrogens would build up on the outside of the membrane and form a
concentration gradient. This will cause chemiosmosis, which is ______________________________________
_________________________________________________________________________________________________________________
41. Draw an ATP synthase molecule and how it fits within the
membrane:
42. Next, add to your drawing an arrow showing the movement of
H+ (which direction do they go through ATP synthase?)
43. When the H+ molecules move through ATP synthase, what is the
resulting reaction? ____________________________________________________
__________________________________________________________________________
Name: __________________________________________________________ Date: __________________________ Period: ____________
44. Draw a detailed molecule of ADP and show what attaches to it in order to become ATP:
+
=
SUMMARY (we will do this together as a class!):
Using the following key, complete the questions below:
 1 molecule of FADH2 = 2 molecules of ATP
 1 molecule of NADH = 3 molecules of ATP
Glycolysis
Number of ATP molecules used…………………………………………………………………………………. - _____________ ATPs
Number of ATP molecules produced…………………………………………………………………………..+ _____________ ATPs
Number of NADH molecules produced: ___________ x3 =..………………………………………….….. + _____________ ATPs
Total contribution of Glycolysis to the production of ATP: ___________
Link Reaction
Number of NADH molecules produced: ___________ x3 =……………………………...………………...+ _____________ ATPs
Total contribution of the Link Reaction to the production of ATP: ___________
Citric Acid (Krebs) Cycle
Number of ATP molecules produced…………………………………………………………………………..+ _____________ ATPs
Number of NADH molecules produced: ___________ x3 =………………………………………………..+ _____________ ATPs
Number of FADH2 molecules produced: ___________ x2 =……………………………………………….+ _____________ ATPs
Total contribution of the CAC to the production of ATP: ___________
Oxidative Phosphorylation/Electron Transport Chain
This does not produce its own ATP; it can only make ATP by taking the electrons from the electron
carriers (NADH and FADH2) and generates ATP. This was calculated in the above sections.
How many molecules of ATP were produced by oxidative phosphorylation (NADH and FADH2)? ___________
Total number of ATP molecules produced from 1 molecule of glucose = _________ ATPs