Chapter 9: Photosynthesis: Capturing Energy
1. The process by which light energy is converted into the stored chemical energy of
organic molecules is:
A.
B.
C.
D.
E.
photosynthesis.
respiration.
diffusion.
fermentation.
None of these.
2. What is the correct sequence of wavelengths (beginning with the shortest)?
A.
B.
C.
D.
E.
gamma rays, UV, x-rays, infrared, visible light, TV and radio waves, and
microwaves
TV and radio waves, microwaves, visible light, UV, infrared, x-rays, and gamma
rays
microwaves, gamma rays, UV, visible light, infrared, TV, radio waves, and x-rays
gamma rays, x-rays, UV, visible light, infrared, microwaves, TV and radio waves
gamma rays, x-rays, UV, infrared, visible light, microwaves, and TV and radio
waves
3. Electrons that are excited to a higher energy level may be transferred to an electron
acceptor or may return to a ground state. If the latter occurs, energy will be released in
a process known as:
A.
B.
C.
D.
E.
photoelectron degradation.
fluorescence.
photoelectron hydrolysis.
porphyrin.
photoelectron deconfiguration.
4. Chlorophyll consists of a porphyrin ring that contains a single atom of:
A.
B.
C.
D.
E.
manganese.
magnesium.
phosphorus.
nitrogen.
iron.
5. Chlorophyll and accessory photosynthetic pigments are associated with the:
A.
B.
C.
D.
E.
stroma.
thylakoid membranes.
mesophyll membranes.
light reaction centers of the stroma lamellae.
stroma grana.
6. By definition, substances that absorb visible light are called:
A.
B.
C.
D.
E.
porphyrins.
nucleotides.
hydrocarbons.
pigments.
photons.
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Chapter 9: Photosynthesis: Capturing Energy
7. A group of thylakoid discs make up:
A.
B.
C.
D.
E.
the stroma.
a granum.
a chloroplast.
a vacuole.
the mesophyll layer.
8. In a chloroplast, there is an outer and an inner membrane. The inner membrane
encloses a fluid filled region called the:
A.
B.
C.
D.
E.
grana.
thylakoid.
stroma.
pigment.
electron acceptor.
9. The thylakoid membrane encloses a space called the:
A.
B.
C.
D.
E.
lumen.
stroma.
granum.
mesophyll.
porphyrin.
10. Thylakoid membranes are involved in _____ synthesis.
A.
B.
C.
D.
E.
18, 19.
glucose
NADP
ATP
RuBP
PEP
Use the figure to answer the corresponding questions.
11. Chloroplasts will be found in the greatest
density in the area of the figure labeled:
A.
B.
C.
D.
E.
1
3
4
6
7
and
and
and
and
and
2.
4.
5.
7.
8.
12. The primary function of the leaf structure
labeled 5 in the figure is:
A.
B.
C.
D.
E.
food storage.
photosynthesis.
water transportation.
gas exchange.
nutrient absorption.
9-2
Chapter 9: Photosynthesis: Capturing Energy
13. The action spectrum of photosynthesis best matches the absorption spectrum of:
A.
B.
C.
D.
E.
21, 22.
NADPH.
carotenoids.
chlorophyll.
xanthophylls.
anthocyanin.
Use the figure to answer the corresponding questions.
14. According to the accompanying graph,
chlorophyll absorbs light most strongly in
the:
A.
B.
C.
D.
E.
red and blue wavelengths.
blue and green wavelengths.
green and yellow wavelengths.
UV and red wavelengths.
UV and infrared wavelengths.
15. The graph in the accompanying figure
represents the:
A.
B.
C.
D.
E.
electromagnetic spectrum.
action spectrum of photosynthesis.
absorption spectra for chlorophylls a
and b.
Z scheme for photosynthesis.
None of these.
9-3
Chapter 9: Photosynthesis: Capturing Energy
16. Red and blue light support the highest rates of photosynthesis because:
A.
B.
C.
D.
E.
these are the only wavelengths reaching Earth from the sun.
these are the only wavelengths that carotenoids cannot absorb.
these wavelengths have the highest energy in the visible spectrum.
chlorophyll absorbs these wavelengths more than other wavelengths.
these wavelengths activate the ATP sythetase enzyme.
17. Engelmann concluded that chlorophyll in the chloroplasts is responsible for
photosynthesis based on the following results:
A.
B.
C.
D.
E.
Spirogyra cells each contain a long, spiral-shaped, emerald-green chloroplast
embedded in the cytoplasm.
The action spectrum of photosynthesis matched the maximum production of
oxygen by Spirogyra, observed by the greatest accumulation of bacteria in the blue
and red regions of the spectrum.
Bacteria exposed to the action spectrum for photosynthesis showed no preference
to any particular color of light.
Accessory pigments transfer some of the energy of excitation produced by green
light to chlorophyll molecules.
None of these answer choices is correct.
18. During the reactions of photosynthesis, ____________ is reduced and ____________ is
oxidized.
A.
B.
C.
D.
E.
O2; C6H12O6
CO2; C6H12O6
H2O; C6H12O6
O2; H2O
CO2; H2O
19. In the overall reactions of photosynthesis, it appears that hydrogen atoms are
transferred from water to carbon dioxide to form a carbohydrate. This type of reaction is
classified as:
A.
B.
C.
D.
E.
a redox reaction.
an anaerobic reaction.
a catabolic reaction.
an oxidation reaction.
a hydrolytic reaction.
20. In photosynthesis, ATP and NADPH are produced during:
A.
B.
C.
D.
E.
the carbon fixation reactions.
the light-dependent phase.
the light-independent phase.
glycolysis.
photolysis.
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Chapter 9: Photosynthesis: Capturing Energy
21. The reactions that occur in the thylakoid membranes are:
A.
B.
C.
D.
E.
the
the
the
the
the
energy-releasing reactions.
photorespiration reactions.
sugar-producing reactions.
carbon fixation reactions.
light-dependent reactions.
22. The reactants of the light-dependent reactions are:
A.
B.
C.
D.
E.
H2O, ADP, and NADP+.
CO2, ADP, and NADP+.
H2O, ATP, and NADPH.
CO2, ADP, and NADPH.
H2O, CO2, and NADP+.
23. The reactants of the Calvin cycle are:
A.
B.
C.
D.
E.
H2O, ATP, and NADPH.
CO2, ADP, and NADP+.
CO2, ATP, and NADPH.
H2O, ATP, and NADPH.
CO2, H2O, and ATP.
24. Which of the following is not associated with the thylakoid membranes?
A.
B.
C.
D.
E.
photosystems I and II
the Calvin cycle
electron transport chain
ATP synthase
antenna complex
25. 12 H2O + 12 NADP+ + 18 ADP + Pi → 6 O2 + 12 NADPH + 18 ATP summarizes the
____________ reactions of photosynthesis.
A.
B.
C.
D.
E.
carbon fixation
light-dependent
light-independent
CAM
electron transport
26. The electron transport chain of photosynthesis is located in the:
A.
B.
C.
D.
E.
cristae.
mitochondria.
outer chloroplast membrane.
chloroplast stroma.
thylakoid membrane.
27. Reaction center complexes of the light-dependent reactions contain ____________ and
____________, which receive energy from ____________.
A.
B.
C.
D.
E.
accessory pigments; chlorophyll; antenna complexes
carotenoids; proteins; chlorophyll
chlorophyll; antenna complexes; carotenoid
proteins; antenna complexes; carotenoid
chlorophyll; proteins; antenna complexes
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Chapter 9: Photosynthesis: Capturing Energy
28. How many electrons are needed to reduce one molecule of NADP + to NADPH?
A.
B.
C.
D.
E.
1
2
3
4
5
29. During the light-dependent reactions of photosynthesis, a constant supply of electrons
is provided by:
A.
B.
C.
D.
E.
water.
oxygen.
the sun.
chlorophyll.
carotenoids.
30. The electrons lost by the P680 reactive center are replaced from:
A.
B.
C.
D.
E.
a water molecule.
solar energy.
ATP.
NADP+.
Photosystem II.
31. Oxygen produced by photosynthesis comes directly from:
A.
B.
C.
D.
E.
light.
CO2.
glucose.
H2O.
ATP.
32. The synthesis of ATP as a result of the light-dependent reactions of photosynthesis is an
____________ reaction that is coupled to the diffusion of ____________ down their
concentration gradient.
A.
B.
C.
D.
E.
endergonic; protons
energy-releasing; hydrogen ions
exergonic; electrons
energy-acquiring; electrons
oxidation; water
33. The first step in the Calvin cycle is the attachment of carbon dioxide to:
A.
B.
C.
D.
E.
Rubisco.
glyceraldehyde 3-phosphate (G3P).
phosphoglycerate
RuBP (ribulose bisphosphate).
None of the above.
34. Which of the following is not common to both photosynthesis and aerobic respiration?
A.
B.
C.
D.
E.
ATP synthesis
electron transport chain
oxidation
terminal electron acceptor
None of these; all are shared by both processes.
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Chapter 9: Photosynthesis: Capturing Energy
35. Which of the following is common to both photosynthesis and aerobic respiration?
A.
B.
C.
D.
E.
NADP+ and NADPH
glycolysis
chemiosmosis
CO2 and O2 as end products
thylakoids
36. Ribulose phosphate is synthesized from:
A.
B.
C.
D.
E.
NADP+.
pyruvate.
G3P.
RuBP.
CO2.
37. Which of the following is not one of the intermediates or products of the carbon fixation
reactions?
A.
B.
C.
D.
E.
NADPH
phosphogylcerate (PGA)
glyceraldehyde 3-phosphate
glucose
ribulose bisphosphate
38. In C4 plants, reactions that fix CO2 into four-carbon compounds occur in:
A.
B.
C.
D.
E.
guard cells.
epidermal cells.
bundle sheath cells.
mesophyll cells.
xylem cells.
39. In C3 plants, the ______________ are typically closed at night and open during the
daytime to allow for gas exchange.
A.
B.
C.
D.
E.
stomata
epidermis
spongy mesophyll
grana
cuticles
40. At night, CAM plants incorporate CO2 into ____________, which is stored in the
____________ of their cells.
A.
B.
C.
D.
E.
fructose; vacuoles
acetyl CoA; mitochondria
glucose; starch granules
pyruvate; starch granules
malate; vacuoles
9-7