Photosynthesis Test Review
Be sure to know
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The summary equation of
photosynthesis including the source
and fate of the reactants and products
How leaf and chloroplast anatomy
relates to photosynthesis
How photosystems convert solar energy
to chemical energy
How linear electron flow in the light
reactions results in the formation of
ATP, NADPH, and O2
Questions
1. Groups of photosynthetic pigment
molecules situated in the thylakoid
membrane are called
a. Photosytems
b. Carotenoids
c. Cholrophyll
d. Grana
2. The main products of the light reactions
are
a. NADPH and FADH2
b. NADPH and ATP
c. ATP and FADH2
d. ATP and CO2
3. The process in photosynthesis that
bears the most resemblance to
chemiosismosis and oxidative
phosporylation in cell respiration is
called
a. Cyclic electron flow
b. Noncyclic electron flow
c. ATP synthase coupling
d. Substrate level phosphorylation
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How chemiosmosis generates ATP in
the light reactions
How the Calvin cycle uses the energy
molecules of the light reactions to
produced G3P
The metabolic and structural
adaptations of C4 and CAM plants to
arid, dry regions.
Be able to label a diagram of the
overview of photosynthesis
4. The major product of Calvin cycle is
a. Rubisco
b. Oxaloacetate
c. Pyruvate
d. Glyceraldehydes-3-phosphate
5. All of the following statements are false
EXCEPT
a. C3plants grow better in hot, arid
conditions than do C4plants
b. C4plants grow better in cold,
moist conditions than do
C3plants
c. C3plants grow better in hot, arid
conditions than do CAM plants
d. CAM plants grow better in hot,
arid conditions than do C3plants
6. Which of the following is mismatched
with its location?
a. Light reactions – grana
b. Electron transport chain –
thylakoid membrane
c. Clavin Cycle – stroma
d. ATP synthesis – double
membrane surrounding
cholorplast
7. The cholorphyll know as P680 has its
electron “holes” filled by electrons from
a. Photosystem I
b. Photosystem II
c. Water
d. NADPH
8. CAM plants avoid photorespiration by
a. Fixing CO2 into organic acids
during the night and release
these at night
b. Performing Calvin Cycle at night
c. Using PEP carboxylate to fix CO2
in the bundle sheath cells
d. Keeping their stomata open
during the day
9. How many turns of the the Calvin cycle
are required to produce one molecule
of glucose?
a. 1
b. 3
c. 4
d. 6
10. What is the final electron acceptor for
the electron transport chain in the light
reactions?
a. ATP
b. NADP+
c. H2O
d. CO2
Essay – Prepare for one of the following
Cellular respiration and photosynthesis are basic cellular process. Below are key events in cellular
respiration and/or photosynthesis.
a. Explain how a photosytem concerts light energy into chemical energy
b. Describe the function of water in both cellular respiration and photosynthesis
The rate of photosynthesis may vary with the changes that occur in environmental temperature,
wavelength of light, and light intensity. Using a photosynthetic organism of your choice, choose only
one of the three variables (temperature, wavelength of light, or light intensity) and for this variable.
a. Design a scientific experiment to determine the effect of the variable on the rate of
photosynthesis for the organism;
b. Explain how you would measure the rate of photosynthesis in your experiment;
c. Describe the results you would expect. Explain why you would expect these results.