Photosynthesis & Cell Respiration Study Sheet
Photosynthesis – What fuels life? How is energy released from sunlight?
Biology p.102-12 (Ch4)
Life Science p. 160-70 (Ch8)
Biology.com Activity 8.2, 8.3
Animations:
Light Reactions: http://www.science.smith.edu/departments/Biology/Bio231/ltrxn.html
Calvin Cycle: http://www.science.smith.edu/departments/Biology/Bio231/calvin.html
Key Terms
chloroplast
chlorophyll
light reactions
wavelength
ATP synthase
rubisco
electromagnetic spectrum
stroma
thylakoid
pigment
photosystem
stomata
paper chromatography
Calvin cycle
autotrophy
NADPH
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
What is the purpose of photosynthesis?
What are the raw materials for photosynthesis?
What are the products of photosynthesis?
What are the 2 major steps of photosynthesis?
Where does light reactions take place? for Calvin cycle?
What is the purpose of light reactions? of Calvin cycle?
What materials are necessary for light reactions to take place? for Calvin cycle?
How is water used in photosynthesis? light? carbon dioxide?
What products come out of light reactions? Calvin cycle?
Where are pigments found? What are they used for?
11. Why can’t Calvin cycle take place in the dark?
Match each of the following words to one of the letters in the diagram. Some letters are used more than once.
1. _____ ADP + P
2. _____ ATP
3. _____ CO2
4. _____ glucose
5. _____ G3P
6. _____ H2O
7. _____ NADP+
8. _____ NADPH
9. _____ O2
10. _____ 3-PGA
11. _____ PSI
12. _____ PSII
13. _____ rubisco
14. _____ RuBP
15. _____ stroma
I
B
A
E
F
G
C
D
H
Chloroplast
J
K
L
16. _____ sunlight
17. _____ thylakoids
Cellular Respiration – How do organisms get their fuel? How is energy released from food?
Biology p.130-48 (Ch5)
Life Science: p.136-7, 143-55 (Ch7)
Biology.com Activity 7.3, 7.4, 7.5, 7.6
Animations:
Glycolysis: http://www.science.smith.edu/departments/Biology/Bio231/glycolysis.html
Krebs Cycle: http://www.science.smith.edu/departments/Biology/Bio231/krebs.html
Electron Transport Chain: http://www.science.smith.edu/departments/Biology/Bio231/etc.html
Key Terms
cell respiration
decomposition
NADH
ATP
acetyl coenzyme A
1.
2.
3.
4.
5.
6.
aerobic
glycolysis
lactate
ATP synthase
anaerobic
metabolism
Krebs cycle
NAD
mitochondria
coenzyme A
fermentation
pyruvate
electron transport system
synthesis
FAD
cytochromes
FADH2
What is the purpose of cell respiration?
What are the raw materials for cell respiration?
What are the products of cell respiration?
How is oxygen used in cell respiration?
How is glucose used in cell respiration?
How do ATP & ADP form a cycle?
A. Match each of the following to the letters in the diagram. Some will have more than one letter. Some letters
are used more than once.
1. _____ citric acid
4. _____ FADH2
6. _____ H2O
8. _____ matrix
10. _____ O2
2. _____ CO2
5. _____ glucose
7. _____ inner membrane 9. _____ NADH
11. _____ pyruvate
3. _____ cytoplasm
B. For each step, write the number of ATP molecules created in the spaces provided.
E
H
Glycolysis
A.
B.
Krebs in the G
D
in the C
Electron Transport
System
ATP synthase action
J
in the L
__ ATP
__ ATP
__
I
K
__ ATP
Photosynthesis and Cell Respiration Study Questions
Standards Addressed:
1f. Students know usable energy is captured from sunlight by chloroplasts and is stored through the synthesis of
sugar from carbon dioxide.
1g. Students know the role of the mitochondria in making stored chemical-bond energy available to cells by
completing the breakdown of glucose to carbon dioxide.
Photosynthesis
1. Which organisms photosynthesize?
2. Which organelle does photosynthesis occur in?
3. Name the two stages of photosynthesis.
4. What is the overall reaction for photosynthesis?
5. What are the two sources of chemical energy?
6. What is the purpose of photosynthesis?
7. Which molecule does carbon dioxide become?
8. Which molecule does water become?
9. What are the products of the light reactions?
10. What are the products of the Calvin cycle?
11. Where do the light reactions occur?
12. Where does the Calvin cycle occur?
13. What is the role of chlorophyll?
14. Why are the light reactions necessary for glucose production?
15. What is the role of light?
16. Give two reasons why the Calvin cycle cannot function at night.
17. What is the waste product of photosynthesis?
18. What are the tiny holes in leaves called?
19. What is the role of these tiny holes?
20. Why do plants need water?
Cell Respiration
21. What are the two types of respiration, and how are they different?
22. Which type of respiration provides more energy?
23. What is the overall reaction for aerobic cell respiration?
24. Name the 3 stages of cell respiration.
25. What are the 3 sources of chemical energy?
26. What is the purpose of cell respiration?
27. Which molecules does glucose become?
28. Which molecule does oxygen become?
29. What are the products of glycolysis?
30. What are the products of Krebs cycle?
31. What are the products of electron transport system?
32. Which stage in aerobic respiration produces the most ATP?
33. Where does glycolysis occur?
34. Which organelle do Krebs cycle and electron transport system occur in?
35. When is lactic acid produced?
36. What are the waste products of aerobic respiration?
37. In humans, how are the waste products removed from the body?
38. How does glucose become available to plant cells?
39. What are two ways in which glucose becomes available to animal cells?
40. Which stage(s) occur(s) in both aerobic and anaerobic respiration?
Answers to Study Questions:
1. plants (autotrophs)
2. chloroplast
3. light reactions, Calvin cycle
4. CO2 + H2O + light C6H12O6 + O2
5. NADPH, ATP
6. produce glucose
7. C6H12O6
8. O2
9. NADPH, ATP, O2
10. C6H12O6
11. thylakoid
12. stroma
13. absorb light
14. They produce the chemical energy needed for Calvin cycle
15. excite the electrons in chlorophyll
16. a) Stomates close at night so no CO2 can enter; b) Rubisco is activated by light
17. O2
18. stomates
19. allow O2 out and CO2 in
20. The hydrogen from water provides lost protons and electrons
21. Anaerobic does not require oxygen; aerobic requires oxygen
22. aerobic
23. C6H12O6 + O2 CO2 + H2O + ATP
24. glycolysis, Krebs cycle, electron transport system
25. NADH, FADH2, ATP
26. Release energy (ATP) from glucose
27. ATP, CO2
28. H2O
29. pyruvate, NADH, ATP
30. NADH, FADH2, ATP, CO2
31. H2O, ATP
32. electron transport system
33. cytoplasm
34. mitochondria
35. after glycolysis, if there is insufficient oxygen
36. CO2, H2O
37. exhaled through respiratory system
38. they make it through photosynthesis
39. eating glucose; break down stored glucose (glycogen, fat)
40. glycolysis