Name ______________________________ Block ______ Unit 4: Energy in the Cell/Ecosystem SES: Section 5.5, Chapter 6 (6.1, 6.3, 6.4, 6.5), Chapter 7 (7.1, 7.3, 7.4, 7.5, 7.6) Unit Learning Targets (L.T.): Metabolic Pathways
1. I can list the basic components of an ATP molecule and draw them properly connected
2. I can demonstrate how an ATP molecule is made and broken down for energy.
3. I can state the overall goal of photosynthesis, the organelle in which it occurs, and its
two main stages.
4. I can list the beginning and ending molecules and their roles for each of the two stages
of photosynthesis.
5. I can state the overall goal of anaerobic respiration and where it occurs
6. I can discuss the different types of anaerobic respiration
7. I can state the overall goal of aerobic cell respiration, the organelle in which it occurs,
and its stages.
8. I can list the beginning and ending molecules and their roles for each of the three
stages of cellular respiration.
Interdependence of Cellular Respiration and Photosynthesis
9. I can list similarities and differences between cell respiration and photosynthesis.
10. I can use cellular respiration and photosynthesis to explain interdependence.
Energy and Matter in the Ecosystem
11. I can explain the roles of autotrophs (producers) and heterotrophs (consumers) in how
energy is transferred in nature.
12. I can explain how metabolic pathways (cellular respiration and photosynthesis)
convert energy while conserving matter.
Group 1: (Additional words are on the Quizlet site as they relate to this unit)
Catabolism
Photosynthesis
Grana
Light Reactions
Electron Transport Chain
Anabolism
Stomates
Chloroplasts
Calvin Cycle
Carbon Fixation
ATP
Thylakoids
Stroma
NADPH
Metabolism
Chlorophyll
Accessory pigments
ATP Synthase
Junction Step
Aerobic Respiration
Cellular Respiration
FADH2
Krebs Cycle
Ethyl Alcohol
Pyruvic Acid
NADH
Glycolysis
Acetyl-CoA
Lactic Acid
Glucose
Autotroph
Biotic Factor
Carnivore
Population
Food Chain
Food Web
Decomposer
Community
Herbivore
Omnivore
Scavenger
Ecosystem
Group 2:
Anaerobic Respiration
Alcoholic Fermentation
Lactic Acid Fermentation
Electron Transport Chain
Group 3:
Ecological Pyramid
Abiotic Factor
Heterotroph
Organism
Biosphere
Topic
Metabolism, ATP and
Chloroplast
Photosynthesis
Photosynthesis/Cellular
Respiration
Cellular Respiration
Cellular Respiration
Energy/Matter Flow
and Interdependence
Review
Test
Activities/Labs/In-class Work
Unit 5 Notes and Discussion
Review: Structure of the Chloroplast/
Mitochondria (HW previous night)
Animation: Light Reactions
Unit 5 Notes and Discussion
Animation: Calvin Cycle
Activity: Energy in the Cell Graphic
Organizer
LT Check #1: Review Part 1
Activity: Photosynthesis Review
Unit 5 Notes and Discussion
Unit 5 Notes and Discussion
Video: Cellular Respiration
Activity: Cellular Respiration
Review/Graphic Organizer
LT Check #2: Review Parts 2 and 3
Unit 5 Notes and Discussion
Activity: Food Web
Review Energy, Matter and
Interdependence
Review Activities
Activity: Practice Test
Test
Homework*
Finish Activities
Review Part 1
Quizlet Group 1
Review Part 2
Finish Activities
Review Part 3
Review Part 4
Review Part 5
Study for Test
Study for Term Test
* Please note – Additional homework and activities may be added as necessary. Any changes
discussed in class and written on the board should be added to homework listed above by the
student and will be due as discussed in class.
Part 1: Overview, Chloroplasts and Light-Dependent Reactions
1. What is the difference between catabolism and anabolism? How are they similar?
2. How do these two types of reactions work together to convert the sun’s energy into ATP?
3. Draw a sketch to illustrate how ATP releases and stores energy.
4. Design a concept chart linking metabolism, catabolism, anabolism, cellular respiration,
photosynthesis and ATP.
5. How do plants gather the sun’s energy? In your answer, describe the role of pigments and
electrons.
6. What is the principal pigment used in photosynthesis? What color does it reflect? What colors
does it absorb?
7. Why do leaves change color in the fall?
8. What occurs during the process of photosynthesis? (Summarize in one sentence)
9. Write the overall equation for photosynthesis using chemical formulas.
10. What does photosynthesis require in addition to water and carbon dioxide?
11. List the two stages of photosynthesis and briefly summarize their role in the process:
12. Sketch and label the structure of the chloroplast.
13. Which of the following is the electron carrier molecule involved in photosynthesis.
H 2O
CO2
NADP+
O2
14. Where in the chloroplast do the light-dependent reactions take place? Be specific!
15. Explain how oxygen gas is involved in the light-dependent reactions.
16. What is the role of the electron transport chain in the light-dependent reactions?
17. What are the products of the light-dependent reactions?
18. Why is ATP produced in the light reactions?
19. What is the overall purpose of the light-dependent reactions? (I know you answered this
above, but try again without looking!)
20. For the following statements, write “true” if they occur in the light-dependent reactions and
“false” if they do not. For statement(s) that are false, make corrections as necessary and write
the correct statement.
a. They form ATP as energy is stored.
b. They release oxygen gas.
c. They release carbon dioxide.
d. They convert NADP+ into NADPH to store high-energy electrons.
e. They take place in the stroma.
f.
Carbon dioxide is used to replace the electrons.
Part 2: The Calvin Cycle
1. Where does the Calvin-Benson Cycle take place?
2. What substances store the energy needed for the Calvin-Benson cycle? Where do they come
from?
3. What happens to CO2 in the Calvin-Benson cycle?
4. Why do you think the reactions of the Calvin-Benson cycle also called the light-independent
reactions?
5. What enzyme is used during the process of carbon fixation to join CO2 to RuBP?
6. What are the products of the Calvin-Benson cycle?
7. Where do the ADP and NADP+ go after being produced?
8. For the following statements, write “true” if they occur in the light-independent reactions/
Calvin-Benson Cycle and “false” if they do not. For statement(s) that are false, make
corrections as necessary and write the correct statement.
a. The main products of the Calvin cycle are oxygen and water.
b. The main purpose of the Calvin cycle is to make ATP.
c. Energy from ATP and high-energy electrons from NADPH are used to help make
sugar.
d. The Calvin cycle uses carbon dioxide to produce a glucose molecule.
9. Why is it so important to make glucose? How is it used by living organisms?
10. What two enzymes are used in photosynthesis? (one in the light-dependent reactions and the
other in the Calvin-Benson cycle)? What is their role in the process?
11. Complete the illustration of the overview of photosynthesis below by writing the products and
the reactants of the process, as well as the energy source that excites the electrons. The
names of the two groups of reactions can be placed on the area of the chloroplast in which
they occur. You will use the following words: light, H2O, NADPH, NADP+, L-D Reactions, C-B
Cycle, O2, CO2, ATP, ADP + P, G3P, glucose
Starch Sucrose Modified from:
http://www.strathmorehighschool.com/docs/homework/16%20%20PS%20worksheet.doc
Part 3: Overview of Cellular Respiration, Glycolysis and Anaerobic Respiration
1. What is the overall purpose of cellular respiration?
2. What is the energy from the food molecules (still in the electrons) ultimately used to make?
3. What is cellular respiration with oxygen called? What is the process called without oxygen?
4. What is the equation for aerobic respiration?
5. What step starts both aerobic and anaerobic respiration?
6. Explain the first part of this step? What is broken down? What does it create?
7. What are the three main products of this step?
8. Why does anaerobic respiration occur?
12. Compare and contrast the 2 types of anaerobic respiration (lactic acid fermentation and
alcoholic fermentation) using a diagram or chart. List 4 similarities and 2 differences.
13. Why does bread rise?
14. What causes muscle fatigue? Would muscle fatigue more likely occur in a marathon runner or
a sprinter? Why?
Part 4: Krebs Cycle and Electron Transport Chain/Comparison of Photosynthesis and
Aerobic Respiration
1. What is the purpose of the Krebs Cycle?
2. What happens to the pyruvic acid prior to entering the Krebs cycle?
3. What substance is released during the Krebs cycle?
4. How are electrons stored during the Krebs Cycle?
5. What is the purpose of the Electron Transport Chain (ETC)?
6. Why does aerobic respiration need oxygen? What happens if oxygen is not present?
7. What gas is released during the ETC? Why?
8. What stores more energy – ATP or glucose?
9. When would a human use aerobic respiration? When would a human use anaerobic
respiration? Why?
10. List 4 differences and 4 similarities between aerobic cellular respiration and photosynthesis.
Part 5: Matter, Energy and Interdependence
1. List the levels of organization of life in order from the smallest level of organization to the
highest level of organization.
2. Explain the difference between abiotic and biotic factors. Give two examples of each that can
be seen in your house or yard.
3. For the each of the organisms listed below, write the appropriate feeding behavior (autotroph,
herbivore, carnivore, scavenger, omnivore, decomposer) AND another example of organism with
this feeding behavior:
Organism
Feeding Behavior
Additional Example
Mushroom
_______________________
______________________________
Deer
_______________________
______________________________
Hawk
_______________________
______________________________
Human
_______________________
______________________________
Lion
_______________________
______________________________
Apple tree
_______________________
______________________________
4. Each example above, except the apple tree, is also considered a(n) ____________________.
5. What does an omnivore eat? ____________________________________
6. What does a carnivore eat? ____________________________________
7. What does an herbivore eat? ____________________________________
8. How does a decomposer differ from a scavenger?
9. In an ecological pyramid, each organism receives _______________% of the preceding level.
10. All energy in an ecological pyramid comes from __________________________.
11. Which level of the pyramid has the greatest number of organisms? _______________ Which
level has the least amount of useable energy? ______________
12. What limits the number of levels in an ecological pyramid or links in a food chain? Why?
13. Why does matter cycle through the ecosystem and energy flows?
14. What are four of elements/compounds that cycle through the ecosystem through abiotic and
biotic factors?
15. Explain how photosynthesis and cellular respiration help to cycle both carbon and water
through biotic factors.