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Name ______________________________ Date _____________________________ Period ____
1. Where does CR take place?
Mitochondria and Cytoplasm
a. Where does glycolysis take place?
Cytoplasm
b. Where does the Krebs cycle take place?
Mitochondria
c. Where does oxidative phosphorylation take place?
Mitochondria
d. Where does fermentation take place?
Cytoplasm
2. What is the equation for CR?
6O2 + C6H12O6  Energy (ATP & Heat) 6 CO2 + 6H2O
3. How much energy is captured as ATP? What is the rest released as? What % is
that?
32 ATP Per glucose. 34% ATP and 66% Heat
4. What is a calorie? What is a kilocalorie?
Ability to heat 1g water 1oC. Ability to heat 1kg water 1oC
5. I have 2000 calories. How many liters of water can I raise one degree Celsius?
Name ______________________________ Date _____________________________ Period ____
2
6. What is a redox reaction?
Adding and removing electrons
a. What is oxidation?
Removing electrons
b. What is reduction?
Adding electrons
7. Describe glycolysis.
The splitting of glucose into two different pyruvate molecules
8. Draw a picture of something that represents glycolysis that has nothing to do
with science.
9. What goes into glycolysis?
Sugar, NAD+
10. What comes out of glycolysis?
Pyruvate, 2 NADH, 2 ATP
Name ______________________________ Date _____________________________ Period ____
11. What are the two main pathways that can be followed after glycolysis? What is
the main difference between them?
Aerobic – Uses O2
Anaerobic – Does not use O2
12. What happens after glycolysis if there is no oxygen?
Fermentation (Alcoholic or Lactic Acid)
13. Describe the two types of fermentation.
Lactic acid – Pyruvate turns to lactic acid and NAD+
Alcoholic – Pyruvate turns to ethyl alcohol, CO2 and NAD+
14. What types of cells does lactic acid fermentation happen in?
Animal and some bacterial
15. What types of cells does alcoholic fermentation happen in?
Fungal, Plant and some bacterial
a. What is yeast?
A fungus that can perform alcoholic fermentation
16. What do we use alcoholic fermentation to create?
Breads, Wine, Yogurts Cheese
17. Describe the pre Krebs cycle.
Pyruvate goes to Acetyl CoA and loses a carbon as CO2
a. What goes into the pre Krebs cycle?
Name ______________________________ Date _____________________________ Period ____
Pyruvate, NAD+
b. What comes out of the pre Krebs cycle?
Acetyl CoA, CO2 and NADH
c. What is released as a byproduct from the pre Krebs cycle?
CO2
18. Describe the Krebs cycle.
Acetyl CoA enters and is combined with other molecules to create ATP, NADH, FADH2
and CO2
a. What goes into the Krebs cycle?
Acetyl CoA, NAD+, FADH+, ADP + P
b. What comes out of the Krebs cycle?
CO2, 6 NADH, 2 FADH2, ATP
c. What is another name for the Krebs cycle?
Citric Acid Cycle
19. What is the first compound that is created in the Krebs cycle?
Citric Acid (Citrate)
20. Electrons are stored and carried in what two molecules? Where are these
molecules brought?
FADH2 and NADH brought to oxidative phosphorylation
21. What is oxidative phosphorylation?
Name ______________________________ Date _____________________________ Period ____
The electron transport chain creates a large concentration gradient of protons (H+
ions) that will be pumped through ATP synthase to create large amounts of ATP
a. What goes into OP?
NADH, FADH2 and O2
b. What comes out of OP?
NAD+, FADH+ and H20
c. Describe the movement of electrons in OP
They move through the electron transport chain and are DE energized.
d. Describe the movement of H+ ions (protons) in OP
They are pumped from the matrix (low concentration) to the intermembrane space
(high concentration)
22. What is really responsible for the creation of ATP in OP? What is that step called?
The concentration gradient of H+ ions. Chemiosmosis
23. Where is the concentration gradient of H+ ions built up?
Intermembrane space
24. What is ATP Synthase?
Molecule that attaches ADP + P into ATP
25. Is ATP synthase something that uses substrate level phosphorylation? If not, what
steps do?
No. Glycolysis and Krebs Cycle
Name ______________________________ Date _____________________________ Period ____
Glycolysis
Pre Citric
Acid
2 ATP
2NADH
2NADH
2 CO2
Citric Acid
Oxidative Phosphorylation
2 ATP
28 ATP
6NADH
Uses NADH
2
FADH2
Uses FADH2
4 CO2
Totals
32
ATP
6
CO2
6 H20
6 H20