Cellular Respiration Review
1.
2.
3.
Use the diagram to label the overall goal of cellular respiration. Circle
Write the name of the organelle in which it occurs in big letters over the top.
Label the three main stages and number them in order, 1, 2, 3.
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Modify the figure by adding labeled boxes and arrows to show how the process changes when there is no oxygen
NAD+
is
regene
rated
for use
NAD+
3C picks up e‘s to become
lactic acid.
X
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4 pts. Use the table to list the beginning and ending molecules for glycolysis and cellular respiration.
reactants
products
reactants
Glucose, 2 ATP, empty ecarriers
Pyruvate, O2, ADP+Pi, empty ecarriers
products
2-pyruvate, 4 ATP, loaded ecarriers
CO2, loaded e- carriers, 36-38
ATP, H2O
Glycolysis
Cellular respiration
Glycolysis
Cellular respiration
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Use the word bank to label the diagram. Write the name of the process across the top of the figure.
1-glucose
O2
NAD+
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NADH
2-pyruvate
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ADP + Pi
2- e-‘s
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Use the word bank to label the figure.
Citric Acid Cycle
Pyruvate
Glucose
without O2
with O2
Cellular Respiration
cytosol
Glycolysis
Fermentation
Acetyl CoA (a 2-C molecule)
cell membrane
matrix of the mitochondrion
“ethanol or lactic acid”
cell membrane
matrix of the
Label each arrow.
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Use the figure to explain how high-energy electrons are used to make ATP. What role is played by the proteins of the electron
transport chain (ETC) and ATP-synthase?
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The high-energy electrons are delivered to the ETC where the proteins move the electrons while dragging H+ across the
membrane. Once the electrons reach the bottom of the chain, they are at their ground state again and are taken in by oxygen
which combines with H+ to form water.
The H+ gradient that has formed across the inner membrane is allowed to flow down its gradient back into the matrix through
ATP Synthase. This phosphorylates ADP and Pi to make ATP.
This process accounts for 18x MORE ATP than anaerobic respiration (fermentation) can provide. When this process evolved,
it gave a huge advantage to the cells that could carry it out. The process quickly spread as the cells with it reproduced the
most successfully.
Mrs. Loyd 
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Complete the figure and then use it to explain the similarities between mitochondria and chloroplasts.
a.
b.
c.
d.
e.
ETC
ATP Synthase
Thylakoid Space
Stroma
ATP
Both processes use
an ETC and ATP synthase to make ATP
two spaces separated by a membrane
a H+ gradient created by the ETC
Intermembrane space
Thylakoid space
Inner membrane
Thylakoid membrane
Matrix
Stroma
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