Cellular Respiration TM
Review
And EXAM Review
Ms. Martinez
1. Where do living things
get most of the energy they
need from?
1. Where do living things get
most of the energy they need
from?
glucose
2. ___________ make
glucose using
photosynthesis.
___________ get glucose
from food they eat.
2. ___________ make glucose
using photosynthesis.
___________ get glucose
from food they eat.
Autrotrophs make glucose
using photosynthesis
Heterotrophs get glucose
from food they eat
3. Define cellular
respiration
3. Define cellular
respiration
is the process that releases energy by
breaking down glucose and other food
molecules in the presence of oxygen.
4. Write the molecular
equation for cellular
respiration.
4. Write the molecular
equation for cellular
respiration.
6O2 + C6H12O6 → 6CO2 + 6H2O + Energy
5. List the three stages
of Cellular respiration.
5. List the three stages
of Cellular respiration.
Glycolysis
Krebs Cycle
Electron Transport
6. Each of the three stages
captures some of the chemical
energy available in food
molecules and uses it to
produce?
6. Each of the three stages
captures some of the chemical
energy available in food
molecules and uses it to
produce?
ATP
7. What does cellular
respiration begin with?
7. What does cellular
respiration begin with?
glycolysis
8. Define glycolysis.
8. Define glycolysis.
is the process in which a
glucose molecule is split in
half.
9. Where does glycolysis
take place in the cell?
9. Where does glycolysis
take place in the cell?
cytoplasm
10. In glycolysis, glucose is
broken in half in to two 3carbon molecules. Identify
the 3-carbon molecule.
10. In glycolysis, glucose is
broken in half in to two 3carbon molecules. Identify
the 3-carbon molecule.
Pyruvic acid
11. How many ATP are
produced in
glycolysis?______ATP.
“net? ATP?______
11. How many ATP are
produced in
glycolysis?______ATP.
“net? ATP?______
4 ATP
2 “net” ATP
12. When the electron
carrier NAD+ accepts a pair
of high-energy electrons,
what molecule is produced?
12. When the electron
carrier NAD+ accepts a pair
of high-energy electrons,
what molecule is produced?
NADH
13. Where, in the cell,
does glycolysis occur?
13. Where, in the cell,
does glycolysis occur?
Cytoplasm
14. Does glycolysis require
the presence of oxygen to
occur?
14. Does glycolysis require
the presence of oxygen to
occur?
No
15. What is the organelle of
cellular respiration?
15. What is the organelle of
cellular respiration?
Mitochondrion
16. SKETCH and LABEL
a mitochondrion.
16. SKETCH and LABEL
a mitochondrion.
17. What gas do
mitochondria combine with
food molecules to obtain
energy?
Oxygen
18. What two eukaryotic
cell types does cellular
respiration occur in?
18. What two eukaryotic
cell types does cellular
respiration occur in?
Plant and Animal
19. What genetic material
do mitochondria contain?
19. What genetic material
do mitochondria contain?
DNA
20. Where does the second
stage of cellular respiration,
the Krebs Cycle, take place?
20. Where does the second
stage of cellular respiration,
the Krebs Cycle, take place?
Matrix of
Mitochondrion
21. Where does the third
stage of cellular respiration,
Electron Transport, take
place?
21. Where does the third
stage of cellular respiration,
Electron Transport, take
place?
Cristae/Inner
Membrane
22. Which gas do aerobic
reactions require?
22. Which gas do aerobic
reactions require?
Oxygen
23. What is another name
for the Krebs cycle?
23. What is another name
for the Krebs cycle?
TCA—The Citric Acid
Cycle
24. Describe the matrix.
24. Describe the matrix.
is the inner compartment of
the mitochondrion filled with
about half water and half
protein.
25. What molecule, from
glycolysis, does the Krebs
cycle begin with?
25. What molecule,
from glycolysis, does
the Krebs cycle
begin with?
Pyruvic Acid
26. Which gas does the
Krebs cycle require?
26. Which gas does the
Krebs cycle require?
Oxygen
27. Which gas, produced by
the Krebs cycle, is a waste
product?
27. Which gas, produced by
the Krebs cycle, is a waste
product?
Carbon
dioxide, CO2
28. What two high-energy
electron molecules will be
carried to the electron
transport chain?
28. What two high-energy
electron molecules will be
carried to the electron
transport chain?
NADH and FADH2
29. Does the Krebs cycle
require oxygen gas?
29. Does the Krebs cycle
require oxygen gas?
YES!!
30. What is the starting 3carbon molecule in the
Krebs cycle?
30. What is the starting 3carbon molecule in the
Krebs cycle?
Pyruvic Acid
31. What is the waste
product of the Krebs Cycle?
31. What is the waste
product of the Krebs Cycle?
Carbon dioxide,
CO2
32. Where, in the
mitochondrion, does the
Krebs cycle occur?
32. Where, in the
mitochondrion, does the
Krebs cycle occur?
Matrix
33. List the two highenergy electron molecules
the electron transport chain
uses to change ADP into
ATP.
33. List the two highenergy electron molecules
the electron transport chain
uses to change ADP into
ATP.
NADH and FADH2
34. Why is Electron
Transport is known as the
Energy Extraction phase?
34. Why is Electron
Transport is known as the
Energy Extraction phase?
Of all 3 stages, this one
produces the most ATP
35. Where does Electron
Transport occur in the
mitochondrion?
35. Where does Electron
Transport occur in the
mitochondrion?
Cristae/Inner Membrane
36. What happens during
the electron transport
chain?
36. What happens during
the electron transport
chain?
Electrons are released from NADH
and FADH2.
Electrons flow down the chain of
proteins.
37. What happens at the
end of the electron
transport chain?
37. What happens at the
end of the electron
transport chain?
Oxygen
accepts
electrons and
joins with H+
to form water.
38. What molecule is the
final electron acceptor?
38. What molecule is the
final electron acceptor?
Oxygen
39. How is water, during
electron transport, formed?
39. How is water, during
electron transport, formed?
H+ joins
with
oxygen
40. Why is ATP synthase
important?
40. Why is ATP synthase
important?
It produces ATP
41. Since Electron
Transport requires oxygen,
which type of reaction is it?
41. Since Electron
Transport requires oxygen,
which type of reaction is it?
Aerobic
42. From 1 molecule of
glucose, how many ATP
molecules are made?
42. From 1 molecule of
glucose, how many ATP
molecules are made?
Up to 36 ATP
43. What is the relationship
with energy flow in
photosynthesis and
respiration?
43. What is the relationship
with energy flow in
photosynthesis and
respiration?
They are opposites
44. Which gas does
photosynthesis remove
from the atmosphere?
44. Which gas does
photosynthesis remove
from the atmosphere?
Carbon dioxide
45. Which gas does
photosynthesis add to the
atmosphere?
45. Which gas does
photosynthesis add to the
atmosphere?
Oxygen
46. Which gas does Cellular
respiration remove from the
atmosphere?
46. Which gas does Cellular
respiration remove from the
atmosphere?
Oxygen
47. Which gas does Cellular
Respiration add to the
atmosphere?
47. Which gas does Cellular
Respiration add to the
atmosphere?
Carbon dioxide
49. Where does
fermentation take place in
the cell?
49. Where does
fermentation take place in
the cell?
Cytoplasm
50. Does fermentation
require oxygen?
50. Does fermentation
require oxygen?
NO!! Anaerobic
51. Which type of
fermentation do animals
(like humans) undergo?
51. Which type of
fermentation do animals
(like humans) undergo?
Lactic Acid
52. What causes
muscles to be sore?
52. What causes
muscles to be sore?
Build-up of Lactic acid
53. After lactic acid reacts
with oxygen, it gets
transported to the l__v__r
and will be broken down by
the body into water.
53. After lactic acid reacts
with oxygen, it gets
transported to the l__v__r
and will be broken down by
the body into water.
liver
Exam Review
Q: Why is ATP is called a cell's
"energy currency?"
Q: Why is ATP is called a cell's
"energy currency?"
ATP provides most of the
energy that drives cell
activities
Q: What happens when a
phosphate group is
removed from an ATP
molecule
Q: What happens when a phosphate
group is removed from an ATP
molecule
energy is released
Q: Carbon dioxide gas is
produced in?
Q: Carbon dioxide gas is
produced in?
Krebs (citric acid) cycle
Q: What products of the Krebs (citric
acid) cycle reactions are produced
and then used in the electron
transport chain to produce a large
number of energy molecules?
Q: What products of the Krebs (citric
acid) cycle reactions are produced
and then used in the electron
transport chain to produce a large
number of energy molecules?
NADH & FADH2
Q: What is the correct
sequence of events in
cellular respiration?
Q: What is the correct
sequence of events in
cellular respiration?
glycolysis → Krebs cycle
→electron transport
What is the correct
equation for cellular
respiration?
Q:
What is the correct
equation for cellular
respiration?
Q:
6O2 + C6H12O6 → 6CO2 + 6H2O + Energy
Q:
One cause of muscle
soreness is
Q:
One cause of muscle
soreness is
lactic acid fermentation.
Q: In the diagram above, in which part of
the mitochondria does the electron
transport chain occur?
Q: In the diagram above, in which part of
the mitochondria does the electron
transport chain occur?
D
Which of the following
processes takes place in
the cytoplasm of a cell?
Q:
Which of the following
processes takes place in the
cytoplasm of a cell?
Q:
glycolysis
Q: In which part(s) of
the cell does the Krebs
cycle occur?
Q: In which part(s) of
the cell does the Krebs
cycle occur?
In the matrix of the mitochondria
Q: Cells produce ATP
most efficiently in the
presence of
Q: Cells produce ATP
most efficiently in the
presence of
Oxygen
Q: Identify the stage of
cellular respiration that
produces the most
amount of ATP.
Q: Identify the stage of
cellular respiration that
produces the most
amount of ATP.
Electron
transport
Q: Which are two products
of anaerobic fermentation?
Q: Which are two products
of anaerobic fermentation?
ethanol (alcohol) and 2 ATP
Q: Under aerobic conditions, a
cell can produce _______ ATP
from one glucose molecule
during respiration.
Q: Under aerobic conditions, a
cell can produce _______ ATP
from one glucose molecule
during respiration.
36
Q: What is the end product
in glycolysis?
Q: What is the end product
in glycolysis?
Pyruvic acid molecule