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CELLULAR RESPIRATION
Name ______________________________________ Period ______
Reaction Equation = ____________________________________________________________________________________
The process starts with:
Process:
=
________ ATP produced
& ________ NADH produced
________________________________ = without oxygen
________________________________ = with oxygen
Process below:
Process:
Produces:
_______ ATP produced
________ CO2 given off
produces NADH & FADH2
_______ ATP produced
OR…
Produces:
Process:
_______ ATP produced
______ O2 used here
_______H2O given off
________ ATP produced
SUMMARY OF CELLULAR RESPIRATION REACTIONS


Total ATP production from Aerobic Respiration = __________ ATP
Total ATP production from Anaerobic Respiration = __________ ATP
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Video Guide –Cellular Respiration–Energy for Life Name _____________________________Period ______
1. All the different biochemical processes in which an organism acquires and uses energy are known
collectively as ______________________________.
2. Energy is ______________________.
3. The body's cellular machine's fuel is __________________________________
4. What is one difference between auto fuel and cellular fuel?
In the digestive system....
5. Fats are broken down into ___________________ + _____________________________
6. Proteins are broken down into ________________________________
7. Carbohydrates are broken down into ____________________________
8. ______________ molecules are the cell’s primary fuel source.
9. Potential energy = ___________________
10. Kinetic energy = ____________________
11. Potential energy of food is measured in ________________
12.The currency u ni t that glucose is broken down into, and that all energy transactions in the body uses is
___________
13. ATP stands for _____________________________________________________________________
14.
A simple representation of
ATP.
15. Breaking the bond between the last two phosphate groups of ATP results in _____________________________
16. ADP becomes ATP again by adding a ________________________.
17. Anaerobic respiration takes place in the cell's ___________________________
18. Aerobic respiration takes place in the cell's ____________________________
19. Where is the oxygen you breathe used in cellular respiration? _________________________
20 . TALLYING UP ENERGY FROM CELLULAR RESPIRATION
Anaerobic cellular respiration................ _____ ATP
Aerobic (Krebs Cycle)............................. ____ ATP
Aerobic Electron Transport.................... ____ ATP
TOTAL ATP = _____
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To Use or Not to Use: Creatine
(1) While Reading the 2 articles on the benefits and risks of Using Creatine, make a list of benefits and risks below.
(2) After discussion with classmates in groups, weigh the pro and con arguments. After discussion and, write your
opinion on whether or not athletes should be allowed to take Creatine to enhance performance. Support your opinion
with evidence from the articles.
*******************************************************************************
Benefits:
Risks:
My opinion, in paragraph form, supported by evidence from the articles:
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Photosynthesis and Respiration
What is the relationship between photosynthesis and cellular respiration?
Why?
Photosynthesis and cellular respiration are important cell energy processes. They are connected in ways
that are vital for the survival of almost all forms of life on earth. In this activity you will look at these two
processes at the cellular level and explore their interdependence.
Model 1 – Comparison of Photosynthesis and Respiration
Photosynthesis:
6CO2 + 6H2O + energy → C6H12O6 + 6O2
Sunlight
energy
Chloroplast
CO2 + H2O
Mitochondrion
energy
(ATP)
O2
Glucose
Respiration:
C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
O2
1. Refer to Model 1.
a. In what cell organelle does photosynthesis occur?
b. What are three reactants needed for photosynthesis?
c. What are two products of photosynthesis?
Photosynthesis and Respiration
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2. Refer to Model 1.
a. In what cell organelle does cellular respiration occur?
b. What are two reactants needed for cellular respiration?
c. What are three products of cellular respiration?
3. What four substances are recycled during photosynthesis and respiration?
4. What is the one component in photosynthesis that is not recycled and must be constantly
available?
5. Are chloroplasts found in most plant cells? Explain.
6. Are mitochondria found in most plant cells? Explain.
7. Are chloroplasts found in animal cells? Explain.
8. Are mitochondria found in animal cells? Explain.
9. Write a grammatically correct sentence that compares the reactants and products of photosynthesis with the reactants and products of respiration. Be ready to share your sentence with the class.
10. As a group carefully consider and discuss the following statement: “Plants can survive on their
own, because they make their own food. Animals can’t survive on their own but need plants for
survival.” Do you agree with this statement? Why or why not? Can you come to a consensus
as a group? Be ready to discuss your group’s response to this statement.
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POGIL™ Activities for High School Biology
Model 2 – The Carbon Cycle
Atmospheric
CO2
D
C
Auto and
factory
emissions
Respiration
Combustion
B
A
Feedi
Wastes
ng
Death
Decay
(by decomposing fungi, bacteria, and worms)
on
ati
rm
o
lF
ue
lF
ssi
Fo
Carbon Stores
(coal, oil, natural gas)
13. In the Model 2 diagram, place a green star by each process (A, B, C, or D) that represents photosynthesis, and a red star by each process (A, B, C, or D) that represents cellular respiration.
14. Write and label equations for cellular respiration and photosynthesis below. Circle the carbon
dioxide in each. If you need help, see Model 1.
15. When matter from plants and animals decay (rot), microorganisms responsible for the decomposition process respire. Knowing this information, do you need to add any red stars to Model 2?
Explain and add the stars if needed.
4POGIL™ Activities for High School Biology
Video Notes - ATP Respiration Crash Course- Biology#7
Most of our energy comes from what sugar molecule? _____________ How many oxygen molecules are
needed to break down that one glucose molecule? ______ How many Carbon dioxide molecules will be given
off? _____ How many water molecules will be given off? ______
What molecule do we need to form that is the energy “currency” our body uses? __________ How
many phosphate groups does it have on it? _____ When it gives off energy ____ phosphate molecule is given
off, and the resulting molecule is now called ________, because it now only has 2 phosphate groups left.
Three steps to Respiration. (Focus on the inputs and outputs, don’t let the chemistry bog you down)
(1) Glycolysis –happens in the cytoplasm of the cell; results in a net gain (net “profit”) of _____ ATP molecules
and ____ molecules of __________.

If there is no oxygen available, the process of ___________________________ occurs, which can
produce ____________________ in plants or _________________ acid in our muscle tissues.

If there is oxygen available, the products of glycolysis go to the…
(2) Krebs cycle –Happens in the mitochondria. Produces 2 more ATP and NADH and FAD. What molecules
help all of these reactions to occur? E___________________ This is where the ___________
_____________ is given off as a by-product.
(3) Electron Transport Chain – is where most of the ATP is made. Let him add up the numbers…
***********************************************************************************
Video notes – from “Respiration—Glycolysis, Krebs Cycle, & Electron Transport
The process of getting energy from food first requires that you get that food to all your cells.
(1) The first process is called ___________________________. The broken down carbohydrates and other
nutrient molecules travel around the body to all the cells. Once that food is in your cells the process of
_________________________ begins. The overall goal is to make _________. The first step in respiration is
called _______________ which literally means “splitting sugars”. Glycolysis occurs in the cytoplasm of the
cell. The first part of Glycolysis requires _____ ATP energy molecules, so it an energy investment phase. At
the end of the glycolysis process a net gain of ____ ATP molecules, _____ molecules of pyruvate and ____
molecules of NADH are formed
(2) If oxygen is present, the next step occurs inside a _____________________________. (The detailed
chemical reactions are not as important to learn now as the results) The intermediate molecules go through
the Krebs Cycle (also called the citric acid cycle) where Carbon dioxide (CO2) and water are formed. The
majority of the ATP molecules are formed in the ___________________ ____________________ chain. A
by-product of the electron transport chain is _____________________. For every glucose molecule that
enters the cell an average of ____ ATP’s are formed, and the carbon dioxide that is formed is released. The
goal of cellular respiration is to ______________________________________________________________
_______________________________________________________________________________________
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Review Guide
RESPIRATION & PHOTOSYNTHESIS
Name ___________________________
Period _____ Due Date _________________
The test questions will come from the following sources:
 The “Summary of Photosynthesis” handout, which has two sides to it. One side has a drawing of a crosssection of a leaf that we labeled together in class. Be able to recognize the parts of the leaf and the gasses
emitted or taken in.
 The other side of the “Summary of Photosynthesis” handout has the steps of photosynthesis broken down
into stages 1 and 2. Be familiar with the picture of the chloroplast, the inputs and outputs from both
stages, and what happens during each of these stages.
 The “Cellular Respiration” and “Video Guide—Cellular Respiration--Energy for Life” worksheet
 The Photosynthesis reading guide that has answers to sections 8-1 and 8-2
 The reading guide that has answers to section 8-3
 The Respiration reading guide that has answers to section 9-1
 The POGIL activity on “Photosynthesis and Respiration” comparisons
Fill in the following blanks:
1) Cells break down high-calorie molecules in a series of _________, releasing the stored energy a small
_________________ at a time.
2) During _______________________, glucose is broken down into two molecules of __________________
__________.
The formula for respiration is: _______________________________________________________________

Fermentation and cellular respiration are both processes that break down ____________________ and
release the energy stored in the molecule. Both start with the process of __________________. Cellular
respiration requires _____________________ as a reactant. Fermentation occurs without______________.

In what organelle does cellular respiration occur?___________________________________ Do plant and animal cells both
have this structure? _______
In what organelle does photosynthesis occur? ___________________________________ Do plant and animal cells both
have this structure? _______

3) Using the equations above, explain the relationship between mitochondria and chloroplasts.
4) Plants have both mitochondria and chloroplasts; they can produce their own glucose to fuel
cellular respiration. Animal cells, on the other hand, have only mitochondria. If an animal eats
only meat what would be its source of glucose?
5) Where in the human body might you find cells with a larger than average number of mitochondria?
_______________________________ Why?
6) Answer the following Question using at least a few sentences: What reasons would you give to your parents
for why studying respiration and photosynthesis can be so valuable in understanding life on this planet?
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Below is a list of statements which
refer to the processes of respiration
and photosynthesis. Write the
appropriate statements under each
heading on the right 
Respiration
Photosynthesis
Uses up stored energy
Takes place in all living cells
Does not require chlorophyll
Not performed by animals
Uses up carbohydrate
Requires chlorophyll
Carbon dioxide is required
Carbon dioxide is given off
Gives off oxygen
Produces energy from light
Produces carbohydrates
Has the Krebs cycle
Has the Calvin Cycle
Includes glycolysis
Answer the following questions from page 237 in your textbook:
1) ______
2) ______
3) ______
4) ______
5) ______
6) ______
7) ______
8) ______
9) ______ 10) ______
13) _________________________________________ and ____________________________________
19)
22)
*page 239 in your textbook:
1) ______
2) ______
3) ______
4) ______
5) ______
6) ______
7) ______
8) ______
9) ______
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