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Answer Key
Activity 1: Photosynthesis Diagram
A Water G ADP
B Thylakoid H Carbon Dioxide
C Oxygen I Calvin Cycle
D ATP J Glucose
E NADPH
K Stroma
F NADP+
Activity 2: Reading Passage With Questions
1. List the reactants required for photosynthesis:
Water, Light, and Carbon Dioxide
2. List the products of photosynthesis: Glucose
and Oxygen
3. What are the two stages of photosynthesis?
Light-Dependent Reactions and Light-
Independent Reactions (Calvin cycle)
4. What is the name of the pigment that absorbs
light energy? Chlorophyll
5. What part of the leaf is responsible for
releasing the waste product, oxygen? Stomata
6. Complete the table below to compare the two
stages of photosynthesis:
7. Based on your reading, why do you think
photosynthesis is a crucial process for plants?
Student answers will vary. Photosynthesis
is crucial because it produces the glucose
needed for the plant to carry out cellular
respiration, which provides energy to the
plant.
8. What impact, if any, would there be for
humans and animals if plants suddenly
stopped performing photosynthesis?" Student
answers will vary. Humans and animals
benefit from the oxygen produced from
photosynthesis as this is necessary for
the survival of their cells. Photosynthesis
produces glucose that when consumed by
plants is converted to energy used to power
their cells.
9. Describe the process of photosynthesis in
your own words. Student answers will vary.
Activity 3: Maze
Activity 4: Scavenger Hunt
1. Light energy
2. Chloroplast
3. C
6
H
12
O
6
4. Oxygen
5. Chlorophyll
6. Thylakoids
7. Light-Dependent
Reactions
8. Calvin Cycle
9. Carbon Dioxide
10. 6H2O
11. E
12. J
Activity 5: Cut and Paste
Light Dependent
Reactions
Light Independent
Reactions (Calvin
Cycle)
Location inside
the chloroplast
Thylakoids Stroma
Reactants Water and light
NADPH, ATP, Carbon
Dioxide
Products
Oxygen, NADPH,
and ATP
ADP, NADP+, Glucose
Light-Dependent Reactions
Calvin Cycle
Where? (What part
of the chloroplast?)
Thylakoids
(stacks of discs inside the
chloroplast)
Stroma
(fluid inside the chloroplast)
When?
When light
is present
Anytime
Reactants
Sunlight and
Water
Carbon Dioxide
Products
Oxygen Glucose
