Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
MULTIPLE CHOICE QUESTIONS
1. Light behaves not only as waves, but also as particles, which are referred to as:
A.
B.
C.
D.
E.
electrons.
protons.
photons.
radiation.
neutrons.
2. An electron absorbs a photon of light energy and becomes energized; the
electron shifts from a ____________ atomic orbital to a _____________ atomic
orbital.
A.
B.
C.
D.
E.
high energy; low energy
fluorescing; ground state
ground state; low energy
low energy; high energy
None of the answer choices are correct.
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 molecules are attached to thylakoid membranes by:
A.
B.
C.
D.
E.
a long hydrophobic tail.
the porphyrin ring.
the methyl group.
a magnesium ion.
a hydroxide group.
6. 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.
9-1
Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
7. The most important photosynthetic pigment(s) is(are):
A.
B.
C.
D.
E.
carotenoids.
xanthophylls.
chlorophyll a.
chlorophyll b.
All of these are equally important for photosynthesis.
8. The ____________________ of a chlorophyll molecule is (are) responsible for
absorbing light.
A.
B.
C.
D.
E.
carbon atoms
porphyrin ring
methyl group
magnesium ion
long hydrophobic tail
9. 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.
10. The thylakoid membrane encloses a space called the:
A.
B.
C.
D.
E.
lumen.
stroma.
granum.
mesophyll.
porphyrin.
11. Thylakoid membranes are involved in _____ synthesis.
A.
B.
C.
D.
E.
glucose
NADP
ATP
RuBP
PEP
12. Chlorophyll:
A.
B.
C.
D.
E.
reflects red and blue light, and absorbs green light.
transmits red and blue light, and absorbs green light.
transmits red and blue light, and reflects green light.
absorbs red and blue light, and reflects green light.
absorbs red, blue, and green light.
13. Accessory photosynthetic pigment that expands the spectrum of light that
provides energy for photosynthesis:
A.
B.
C.
D.
E.
carotenoids.
chlorophyll a.
chlorophyll b.
Both caroternois and chlorophyll a.
Both carotenoids and chlorophyll b.
9-2
Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
14. The action spectrum of photosynthesis best matches the absorption spectrum
of:
A.
B.
C.
D.
E.
NADPH.
carotenoids.
chlorophyll.
xanthophylls.
anthocyanin.
15. Chlorophyll absorbs primarily _____ and _____ regions of the visible spectrum.
A.
B.
C.
D.
E.
blue; red
green; yellow
red; green
red; yellow
blue; yellow
16. 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.
17. The overall reactions of photosynthesis are best summarized as:
A.
B.
C.
D.
E.
12 CO2 + 6 H2O → C6H12O6 + 12 O2 + 6 H2O.
C6H12O6 + 6 O2 + 6 H2O → 6 CO2 + 12 H2O.
6 CO2 + 12 H2O → C6H12O6 + 6 O2 + 6 H2O.
6 CO2 + 12 H2O → C6H12O6 + 12 O2.
6 H2CO3 + 6 H2O → C6H12O6 + C6H12O6 + 6 H2O + 6 O2.
18. During the reactions of photosynthesis, ____________ is reduced and ____________
is oxidized.
A.
B.
C.
D.
E.
O2; C6H12O6
CO2; C6H12O6
H2O; C6H12O6
O 2; H 2O
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.
9-3
Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
20. The reactions of photosynthesis are divided into two categories:
A.
B.
C.
D.
E.
light-independent reactions and carbon fixation reactions.
carbon fixation reactions and oxygen fixation reactions.
light-dependent reactions and carbon fixation reactions.
light-dependent reactions and citric acid cycle.
chemiosmosis and photochemical reactions.
21. 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.
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.
9-4
Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
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
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. Oxygen produced by photosynthesis comes directly from:
A.
B.
C.
D.
E.
light.
CO2.
glucose.
H2O.
ATP.
31. ATP is formed when __________________ the thylakoid lumen.
A.
B.
C.
D.
E.
hydrogen ions enter
hydrogen ions leave
electrons enter
electrons leave
water is split in
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 synthesis of ATP during photosynthesis or respiration occurs as a result of:
A.
B.
C.
D.
E.
phosphorylation of AMP.
phosphorylation of ATP.
phosphorylation of ADP.
phosphorylation of G3P.
oxidation of NADPH.
9-5
Name____________________________Chapter 9: Photosynthesis: Capturing Energy
Mrs. Laux
AP Biology
Take home test #6
DUE: MONDAY, NOVEMBER 1, 2010
34. The first step in the Calvin cycle is the attachment of carbon dioxide to:
A.
B.
C.
D.
E.
E.
Rubisco.
glyceraldehyde 3-phosphate (G3P).
phosphoglycerate
RuBP (ribulose bisphosphate).
None of the above.
None of these; all are shared by both processes.
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. 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
40. Animals, fungi, and many bacteria that use organic molecules as a source of
both energy and carbon are:
A.
B.
C.
D.
E.
photoautotrophs.
catabolic autotrophs.
chemoheterotrophs.
photoheterotrophs.
chemoautotrophs.
9-6