Download Cellular Respiration Name: Period: ______ Date: 1. Define cellular

Cellular Respiration
Name: ______________________________ Period: _____________ Date: _______________
1. Define cellular respiration: ________________________________________________________________________
2. Write the equation for Cellular Respiration: ___________________________________________________________
3. List the three stages of cellular respiration and identify if they require oxygen.
A. _________________________________________ Oxygen / No Oxygen
B. _________________________________________ Oxygen / No Oxygen
C. _________________________________________ Oxygen / No Oxygen
Glycolysis
4. What is glycolysis? ______________________________
Draw and Label a picture of Glycolysis (p. 232)
_________________________________________________
5. How many ATPS are needed to start glycolysis? ________
6 How many ATPS does glycolysis produce? ____________
7. What is the net gain of ATPS from glycolysis? _________
8. Where does glycolysis take place? _________________
9. What does glycolysis break down? _________________
10. What is the end product of glycolysis? ______________
11. Where does pyruvic acid go? _____________________
12. How many molecules of pyruvic acid were made from 1
molecule of glucose? _______________________________
13. How many NADH are produced during glycolysis? _____
14. Where does the NADH go to? _____________________
Fermentation
15. When oxygen is not present glycolysis is followed by __________________________________________________.
16. What is fermentation? ____________________________________________________________________________
17. During fermentation, how do cells convert NADH to NAD+ ? ______________________________________________
__________________________________________________________________________________________________
18. Does fermentation require oxygen? ___________
19. If a process does not require oxygen it is said to be _____________________________________
Alcoholic Fermentation
20. What type of organisms use alcoholic fermentation?
________________________________________________
21. Write the equation for alcoholic fermentation.
________________________________________________
Lactic Acid Fermentation
22. In what type of cells does lactic acid fermentation take
place? _________________________________________
23. Write the equation for lactic acid fermentation.
________________________________________________
Draw and Label Table 9.12 (Page 235)
The Krebs Cycle
24. What is required for the final steps of cellular respiration? ____________________________________
25. Pathways that require oxygen are called what? _________________________________________
26. When oxygen is present glycolysis is followed by ___________________________________________________
27. What happens during the Krebs cycle? _______________________________________________________________
_______________________________________________________________________________________________
28. Where does the Krebs Cycle take place? ______________________________________________________________
29. The Krebs cycle is also known as __________________________________________________________
30. Complete the steps to the Krebs Cycle:
1. The Krebs cycle begins when ________________________ produced by glycolysis enters the
_______________________________
2. _________ carbon atom from pyruvic acid becomes part of _______________ and enters the air.
3. During this process electrons are removed , changing NAD+ to __________________
4. The ________ other carbon atoms from pyruvic acid are joined to a compound called
_________________________ to form _______________________________.
5. Acetyl-CoA (2C) then joins to a 4C molecule to produce ______________________________________.
6. Citric acid is broken down into a _______carbon compound releasing _____carbon in the form of _________
and electrons are transferred to NAD+ forming NADH.
7. This 5 carbon compound then breaks down again releasing another _______________ in the form of CO2 and
more electrons are transferred to NAD+ forming NADH.
8. This 4 carbon compound is now ready to accept another _______ carbon acetyl group to start the cycle over
again.
9. For each turn of this cycle 1 molecule of ADP is converted into 1 molecule of ________________________.
10. Before the cycle ends another pair of high-energy electrons are accepted by NAD+ changing it to ____________
and by FAD changing it to ____________________.
31. The energy tally from one molecule of pyruvic acid is ________ NADH, ________ FADH2, and ________ ATP.
Draw and Label a picture of the Krebs Cycle (p. 227)
Electron Transport Chain
32. The high energy electrons from the Krebs Cycle are passed to the _________________________________________
33. What is the function of the electron transport chain? ___________________________________________________
34. Where is the electron transport chain located in eukaryotes? _____________________________________________
35. Where is the electron transport chain located in prokaryotes? ____________________________________________
36. Complete the steps to the electron transport chain:
1. High-energy electrons from ______________ and _________________ are passed along the ________________
proteins in the electron transport chain.
2. At the end of the E.T.C. there is an enzyme that combines these electrons with _________________ ions and
oxygen to form ______________________________.
3. Every time high-energy electrons transport down the E.T.C. their energy is used to pump ________________
across the membrane.
4. Hydrogen ions build up in the ____________________________ space, making it ________________ charged.
5. The Hydrogen ions then escape through the protein _______________________ found in the inner membranes
of the mitochondria.
6. As the hydrogen ions escape ATP synthase begins to ________________________________.
7. As ATP synthase spins, the enzyme grabs an _____________ and attaches a _________________________ to
form __________________.
37. What is the final electron acceptor for the electron transport chain? _____________________________________
Draw and Label a picture of the Electron Transport Chain (p. 228)
Totals
Draw and Label a Picture Showing the Total Number of ATP Formed During Cellular Respiration (p. 229)