2. Define photosynthesis.1
Define photosynthesis.
The process of converting energy from the sun into chemical energy in the form of glucose.
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3. Autotrophs produce their own food and are also called producers.2
Autotrophs produce their own food and are also called producers.
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4. Heterotrophs must consume food and are also called consumers.3
Heterotrophs must consume food and are also called consumers.
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6. Label these chloroplast structures.5
Label these chloroplast structures.
Image is public domain.
stroma
thylakoid
granum
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7. Identify the leaf layer where chloroplasts are concentrated.
mesophyll 6
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8. Write the word equation for photosynthesis.7
Write the word equation for photosynthesis.
carbon dioxide + water  oxygen + glucose
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9. Pores on the underside of the leaf are called stomata.8
Pores on the underside of the leaf are called stomata.
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10. 9
The primary “food” produced by photosynthesis is a 6-carbon sugar called glucose.
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11. What do plants use glucose for?10
What do plants use glucose for?
Some is used for cellular respiration and some is converted to other organic compounds or stored.
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12. Where do plants store excess glucose? leaves, stems, roots, or fruit11
Where do plants store excess glucose?
leaves, stems, roots, or fruit
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14. Complete the chemical equation for photosynthesis.13
Complete the chemical equation for photosynthesis.
6 CO2 + 6 H2O  C6H12O6 + 6 O2
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15. 14
Explain this diagram.
The products of photosynthesis are the reactants of cellular respiration and the products of cellular respiration are the reactants of photosynthesis.
Photosynthesis
Glucose & Oxygen
Cellular Respiration
Carbon Dioxide & Water
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17. The green pigment in plants is called chlorophyll.16
The green pigment in plants is called chlorophyll.
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18. 17
Photosynthesis first converts light energy into ATP & NADPH. Then, ATP & NADPH are used to make glucose.
Sunlight
ATP & NADPH
Glucose
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20. 19
NADPH is a high energy electron carrier that is used to help turn CO2 into glucose.
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22. 21
The stage of photosynthesis that actually produces sugar is the Calvin Cycle.
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23. Where do the light reactions occur? In the thylakoid membrane22
Where do the light reactions occur? In the thylakoid membrane
Where does the Calvin Cycle occur? In the stroma
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25. 24
The Light Reactions start when a pigment molecule in Photosystem II absorbs a photon of light which excites one of the pigment’s electrons.
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26. 25
An excited electron is passed from PSII to an electron transport chain on its way to PSI.
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28. 27
Chemiosmosis is the diffusion of ions through a semi-permeable membrane. This diffusion through an ATP Synthase molecule produces ATP from ADP.
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29. 28
Photosystem I passes a light-excited electron to a short electron transport chain which generates NADPH.
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30. List the products of the Light Reactions.29
List the products of the Light Reactions.
ATP
NADPH
oxygen (waste)
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32. List the inputs and outputs of the Calvin Cycle.31
List the inputs and outputs of the Calvin Cycle.
Inputs: ATP, NADPH, O2
Outputs: G3P sugar
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33. 32
Photosynthesis is the ultimate source of the air we breathe and the food we eat.
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34. Put these 4 steps of the Calvin Cycle in the correct order.33
Put these 4 steps of the Calvin Cycle in the correct order.
a. RuBP Regenerated
b. Reduction to form G3P
c. G3P Released
d. Carbon fixation
d, b, c, a
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35. Put these 4 steps of the Light Reactions in the correct order.34
Put these 4 steps of the Light Reactions in the correct order.
ATP-producing ETC
Photosystem I
Photosystem II
NADPH-producing ETC
c, a, b, d
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36. Complete these statements about the carbon cycle:35
Complete these statements about the carbon cycle:
Photosynthesis converts inorganic CO2 into organic compounds. Cellular respiration uses organic compounds and releases CO2 into the atmosphere. C
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37. Make your own matching task cards by inserting duplicate slides.
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