HONORS BIOLOGY
PHOTOSYNTHESIS REVIEW
Ch. 7
7.1 Define:
Autotophs:
producers:
photoautotrophs:
7.2 Label the diagram of a leaf, the LM image
of a mesophyll cell, the chloroplast diagram and
TEM image.
WORD BANK:
Intermembrane space
chloroplast
mesophyll cells
vein
stroma
inner membrane
thylakoid
thylakoid space
stoma
CO2
O2
leaf
palisade mesophyll cells
spongy mesophyll cells
guard cells
7.2 Write the overall chemical equation for
photosynthesis. Be sure to include the E for
energy.
7.2 Refer back to the equation you just wrote.
How do the reactant molecules of
photosynthesis reach the chloroplast in leaves?
7.3 Explain how plants produce oxygen. Be specific.
Mrs. Loyd 
cloyd@waukee.k12.ia.us
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7.5, 7.10, 7.11
Label the diagram of the chloroplast to show the reactants and products of the light reactions and
the Calvin cycle. (* denotes optional information)
Word Bank:
CO2
O2
H2O
ATP
NADPH
NADP+
ADP
Pi
Sugars
Light Energy
Light Reactions
Calvin Cycle
*Electron Transport Chains (ETC)
*Photosystem I and
*PII
Thylakoid membrane
Thylakoid space
Stroma
Cellular Respiration
Other compounds
Cellulose
Starch
G3P
7.5 Refer again to the equation you wrote for photosynthesis. Know it, love it! Use the numbers for each reactant and
product given below to number the diagram above.
#1 Light Energy
#2 CO2
#3 Water
#4 O2
#5 Sugars
7.5 What are the reactants and products of the light-dependent reactions?
7.5 What are the reactants and products of the Calvin cycle?
7.5 Does the Calvin cycle use light directly?
7.5 For chloroplasts to produce sugar from carbon dioxide in the dark, they would need to be supplied with __________ &
_____________.
7.6 Use the diagram to help you explain why plants are green.
Wavelengths of light appear to us as colors. Which colors are used the most in photosynthesis?
by chlorophyll a?
Mrs. Loyd 
cloyd@waukee.k12.ia.us
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by chlorophyll b?
What two functions do the other photosynthetic pigments (like carotenoids) perform?
Why do leaves change color in the fall?
What is the ONE molecule on the planet that can give up energized electrons?
7.13
Use the diagram to explain the “greenhouse
effect.”
7.13
Explain how deforestation and the use of fossil fuels contribute to global warming.
7.14
How does the ozone layer form?
7.14
How have human activities damaged the ozone layer?
7.14
If the ozone layer is destroyed, what will be the consequences?
Mrs. Loyd 
cloyd@waukee.k12.ia.us
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This section is COMPLETELY OPTIONAL!!!!
Use the analogy to help explain (in actual terms, not analogy terms) how
radiant energy from the sun is transformed into chemical energy.
This diagram compares the chemiosomotic synthesis
of ATP (as opposed to substrate-level synthesis of
ATP) in mitochondria and chloroplasts.
Which side of the membrane (dark gray or light gray)
has the higher hydrogen ion concentration?
Label a. through e.
a.
b.
c.
d.
e.
Mitochondria
Chloroplasts
Where do the electrons for
the electron transport chain
come from?
Where do the electrons get
their energy?
What picks up the electrons
at the end of the chain?
How is the energy (given up
by the electrons) used?
Where are the ETC proteins
embedded?
Where is the pH the highest?
H+
Where is the pH the lowest?
H+
Mrs. Loyd 
cloyd@waukee.k12.ia.us
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